diff options
Diffstat (limited to 'Documentation/ABI')
26 files changed, 630 insertions, 121 deletions
diff --git a/Documentation/ABI/obsolete/sysfs-bus-usb b/Documentation/ABI/obsolete/sysfs-bus-usb new file mode 100644 index 000000000000..bd096d33fbc7 --- /dev/null +++ b/Documentation/ABI/obsolete/sysfs-bus-usb @@ -0,0 +1,31 @@ +What: /sys/bus/usb/devices/.../power/level +Date: March 2007 +KernelVersion: 2.6.21 +Contact: Alan Stern <stern@rowland.harvard.edu> +Description: + Each USB device directory will contain a file named + power/level. This file holds a power-level setting for + the device, either "on" or "auto". + + "on" means that the device is not allowed to autosuspend, + although normal suspends for system sleep will still + be honored. "auto" means the device will autosuspend + and autoresume in the usual manner, according to the + capabilities of its driver. + + During normal use, devices should be left in the "auto" + level. The "on" level is meant for administrative uses. + If you want to suspend a device immediately but leave it + free to wake up in response to I/O requests, you should + write "0" to power/autosuspend. + + Device not capable of proper suspend and resume should be + left in the "on" level. Although the USB spec requires + devices to support suspend/resume, many of them do not. + In fact so many don't that by default, the USB core + initializes all non-hub devices in the "on" level. Some + drivers may change this setting when they are bound. + + This file is deprecated and will be removed after 2010. + Use the power/control file instead; it does exactly the + same thing. diff --git a/Documentation/ABI/obsolete/sysfs-class-rfkill b/Documentation/ABI/obsolete/sysfs-class-rfkill new file mode 100644 index 000000000000..4201d5b05515 --- /dev/null +++ b/Documentation/ABI/obsolete/sysfs-class-rfkill @@ -0,0 +1,29 @@ +rfkill - radio frequency (RF) connector kill switch support + +For details to this subsystem look at Documentation/rfkill.txt. + +What: /sys/class/rfkill/rfkill[0-9]+/state +Date: 09-Jul-2007 +KernelVersion v2.6.22 +Contact: linux-wireless@vger.kernel.org +Description: Current state of the transmitter. + This file is deprecated and sheduled to be removed in 2014, + because its not possible to express the 'soft and hard block' + state of the rfkill driver. +Values: A numeric value. + 0: RFKILL_STATE_SOFT_BLOCKED + transmitter is turned off by software + 1: RFKILL_STATE_UNBLOCKED + transmitter is (potentially) active + 2: RFKILL_STATE_HARD_BLOCKED + transmitter is forced off by something outside of + the driver's control. + +What: /sys/class/rfkill/rfkill[0-9]+/claim +Date: 09-Jul-2007 +KernelVersion v2.6.22 +Contact: linux-wireless@vger.kernel.org +Description: This file is deprecated because there no longer is a way to + claim just control over a single rfkill instance. + This file is scheduled to be removed in 2012. +Values: 0: Kernel handles events diff --git a/Documentation/ABI/stable/sysfs-class-rfkill b/Documentation/ABI/stable/sysfs-class-rfkill new file mode 100644 index 000000000000..097f522c33bb --- /dev/null +++ b/Documentation/ABI/stable/sysfs-class-rfkill @@ -0,0 +1,67 @@ +rfkill - radio frequency (RF) connector kill switch support + +For details to this subsystem look at Documentation/rfkill.txt. + +For the deprecated /sys/class/rfkill/*/state and +/sys/class/rfkill/*/claim knobs of this interface look in +Documentation/ABI/obsolete/sysfs-class-rfkill. + +What: /sys/class/rfkill +Date: 09-Jul-2007 +KernelVersion: v2.6.22 +Contact: linux-wireless@vger.kernel.org, +Description: The rfkill class subsystem folder. + Each registered rfkill driver is represented by an rfkillX + subfolder (X being an integer > 0). + + +What: /sys/class/rfkill/rfkill[0-9]+/name +Date: 09-Jul-2007 +KernelVersion v2.6.22 +Contact: linux-wireless@vger.kernel.org +Description: Name assigned by driver to this key (interface or driver name). +Values: arbitrary string. + + +What: /sys/class/rfkill/rfkill[0-9]+/type +Date: 09-Jul-2007 +KernelVersion v2.6.22 +Contact: linux-wireless@vger.kernel.org +Description: Driver type string ("wlan", "bluetooth", etc). +Values: See include/linux/rfkill.h. + + +What: /sys/class/rfkill/rfkill[0-9]+/persistent +Date: 09-Jul-2007 +KernelVersion v2.6.22 +Contact: linux-wireless@vger.kernel.org +Description: Whether the soft blocked state is initialised from non-volatile + storage at startup. +Values: A numeric value. + 0: false + 1: true + + +What: /sys/class/rfkill/rfkill[0-9]+/hard +Date: 12-March-2010 +KernelVersion v2.6.34 +Contact: linux-wireless@vger.kernel.org +Description: Current hardblock state. This file is read only. +Values: A numeric value. + 0: inactive + The transmitter is (potentially) active. + 1: active + The transmitter is forced off by something outside of + the driver's control. + + +What: /sys/class/rfkill/rfkill[0-9]+/soft +Date: 12-March-2010 +KernelVersion v2.6.34 +Contact: linux-wireless@vger.kernel.org +Description: Current softblock state. This file is read and write. +Values: A numeric value. + 0: inactive + The transmitter is (potentially) active. + 1: active + The transmitter is turned off by software. diff --git a/Documentation/ABI/stable/sysfs-devices-node b/Documentation/ABI/stable/sysfs-devices-node new file mode 100644 index 000000000000..49b82cad7003 --- /dev/null +++ b/Documentation/ABI/stable/sysfs-devices-node @@ -0,0 +1,7 @@ +What: /sys/devices/system/node/nodeX +Date: October 2002 +Contact: Linux Memory Management list <linux-mm@kvack.org> +Description: + When CONFIG_NUMA is enabled, this is a directory containing + information on node X such as what CPUs are local to the + node. diff --git a/Documentation/ABI/testing/debugfs-ec b/Documentation/ABI/testing/debugfs-ec new file mode 100644 index 000000000000..6546115a94da --- /dev/null +++ b/Documentation/ABI/testing/debugfs-ec @@ -0,0 +1,20 @@ +What: /sys/kernel/debug/ec/*/{gpe,use_global_lock,io} +Date: July 2010 +Contact: Thomas Renninger <trenn@suse.de> +Description: + +General information like which GPE is assigned to the EC and whether +the global lock should get used. +Knowing the EC GPE one can watch the amount of HW events related to +the EC here (XY -> GPE number from /sys/kernel/debug/ec/*/gpe): +/sys/firmware/acpi/interrupts/gpeXY + +The io file is binary and a userspace tool located here: +ftp://ftp.suse.com/pub/people/trenn/sources/ec/ +should get used to read out the 256 Embedded Controller registers +or writing to them. + +CAUTION: Do not write to the Embedded Controller if you don't know +what you are doing! Rebooting afterwards also is a good idea. +This can influence the way your machine is cooled and fans may +not get switched on again after you did a wrong write. diff --git a/Documentation/ABI/testing/debugfs-kmemtrace b/Documentation/ABI/testing/debugfs-kmemtrace deleted file mode 100644 index 5e6a92a02d85..000000000000 --- a/Documentation/ABI/testing/debugfs-kmemtrace +++ /dev/null @@ -1,71 +0,0 @@ -What: /sys/kernel/debug/kmemtrace/ -Date: July 2008 -Contact: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> -Description: - -In kmemtrace-enabled kernels, the following files are created: - -/sys/kernel/debug/kmemtrace/ - cpu<n> (0400) Per-CPU tracing data, see below. (binary) - total_overruns (0400) Total number of bytes which were dropped from - cpu<n> files because of full buffer condition, - non-binary. (text) - abi_version (0400) Kernel's kmemtrace ABI version. (text) - -Each per-CPU file should be read according to the relay interface. That is, -the reader should set affinity to that specific CPU and, as currently done by -the userspace application (though there are other methods), use poll() with -an infinite timeout before every read(). Otherwise, erroneous data may be -read. The binary data has the following _core_ format: - - Event ID (1 byte) Unsigned integer, one of: - 0 - represents an allocation (KMEMTRACE_EVENT_ALLOC) - 1 - represents a freeing of previously allocated memory - (KMEMTRACE_EVENT_FREE) - Type ID (1 byte) Unsigned integer, one of: - 0 - this is a kmalloc() / kfree() - 1 - this is a kmem_cache_alloc() / kmem_cache_free() - 2 - this is a __get_free_pages() et al. - Event size (2 bytes) Unsigned integer representing the - size of this event. Used to extend - kmemtrace. Discard the bytes you - don't know about. - Sequence number (4 bytes) Signed integer used to reorder data - logged on SMP machines. Wraparound - must be taken into account, although - it is unlikely. - Caller address (8 bytes) Return address to the caller. - Pointer to mem (8 bytes) Pointer to target memory area. Can be - NULL, but not all such calls might be - recorded. - -In case of KMEMTRACE_EVENT_ALLOC events, the next fields follow: - - Requested bytes (8 bytes) Total number of requested bytes, - unsigned, must not be zero. - Allocated bytes (8 bytes) Total number of actually allocated - bytes, unsigned, must not be lower - than requested bytes. - Requested flags (4 bytes) GFP flags supplied by the caller. - Target CPU (4 bytes) Signed integer, valid for event id 1. - If equal to -1, target CPU is the same - as origin CPU, but the reverse might - not be true. - -The data is made available in the same endianness the machine has. - -Other event ids and type ids may be defined and added. Other fields may be -added by increasing event size, but see below for details. -Every modification to the ABI, including new id definitions, are followed -by bumping the ABI version by one. - -Adding new data to the packet (features) is done at the end of the mandatory -data: - Feature size (2 byte) - Feature ID (1 byte) - Feature data (Feature size - 3 bytes) - - -Users: - kmemtrace-user - git://repo.or.cz/kmemtrace-user.git - diff --git a/Documentation/ABI/testing/ima_policy b/Documentation/ABI/testing/ima_policy index 6434f0df012e..6cd6daefaaed 100644 --- a/Documentation/ABI/testing/ima_policy +++ b/Documentation/ABI/testing/ima_policy @@ -20,7 +20,7 @@ Description: lsm: [[subj_user=] [subj_role=] [subj_type=] [obj_user=] [obj_role=] [obj_type=]] - base: func:= [BPRM_CHECK][FILE_MMAP][INODE_PERMISSION] + base: func:= [BPRM_CHECK][FILE_MMAP][FILE_CHECK] mask:= [MAY_READ] [MAY_WRITE] [MAY_APPEND] [MAY_EXEC] fsmagic:= hex value uid:= decimal value @@ -40,11 +40,11 @@ Description: measure func=BPRM_CHECK measure func=FILE_MMAP mask=MAY_EXEC - measure func=INODE_PERM mask=MAY_READ uid=0 + measure func=FILE_CHECK mask=MAY_READ uid=0 The default policy measures all executables in bprm_check, all files mmapped executable in file_mmap, and all files - open for read by root in inode_permission. + open for read by root in do_filp_open. Examples of LSM specific definitions: @@ -54,8 +54,8 @@ Description: dont_measure obj_type=var_log_t dont_measure obj_type=auditd_log_t - measure subj_user=system_u func=INODE_PERM mask=MAY_READ - measure subj_role=system_r func=INODE_PERM mask=MAY_READ + measure subj_user=system_u func=FILE_CHECK mask=MAY_READ + measure subj_role=system_r func=FILE_CHECK mask=MAY_READ Smack: - measure subj_user=_ func=INODE_PERM mask=MAY_READ + measure subj_user=_ func=FILE_CHECK mask=MAY_READ diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block index d2f90334bb93..4873c759d535 100644 --- a/Documentation/ABI/testing/sysfs-block +++ b/Documentation/ABI/testing/sysfs-block @@ -128,3 +128,17 @@ Description: preferred request size for workloads where sustained throughput is desired. If no optimal I/O size is reported this file contains 0. + +What: /sys/block/<disk>/queue/nomerges +Date: January 2010 +Contact: +Description: + Standard I/O elevator operations include attempts to + merge contiguous I/Os. For known random I/O loads these + attempts will always fail and result in extra cycles + being spent in the kernel. This allows one to turn off + this behavior on one of two ways: When set to 1, complex + merge checks are disabled, but the simple one-shot merges + with the previous I/O request are enabled. When set to 2, + all merge tries are disabled. The default value is 0 - + which enables all types of merge tries. diff --git a/Documentation/ABI/testing/sysfs-bus-i2c-devices-hm6352 b/Documentation/ABI/testing/sysfs-bus-i2c-devices-hm6352 new file mode 100644 index 000000000000..feb2e4a87075 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-i2c-devices-hm6352 @@ -0,0 +1,21 @@ +Where: /sys/bus/i2c/devices/.../heading0_input +Date: April 2010 +Kernel Version: 2.6.36? +Contact: alan.cox@intel.com +Description: Reports the current heading from the compass as a floating + point value in degrees. + +Where: /sys/bus/i2c/devices/.../power_state +Date: April 2010 +Kernel Version: 2.6.36? +Contact: alan.cox@intel.com +Description: Sets the power state of the device. 0 sets the device into + sleep mode, 1 wakes it up. + +Where: /sys/bus/i2c/devices/.../calibration +Date: April 2010 +Kernel Version: 2.6.36? +Contact: alan.cox@intel.com +Description: Sets the calibration on or off (1 = on, 0 = off). See the + chip data sheet. + diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci index 25be3250f7d6..f979d825d112 100644 --- a/Documentation/ABI/testing/sysfs-bus-pci +++ b/Documentation/ABI/testing/sysfs-bus-pci @@ -139,3 +139,30 @@ Contact: linux-pci@vger.kernel.org Description: This symbolic link points to the PCI hotplug controller driver module that manages the hotplug slot. + +What: /sys/bus/pci/devices/.../label +Date: July 2010 +Contact: Narendra K <narendra_k@dell.com>, linux-bugs@dell.com +Description: + Reading this attribute will provide the firmware + given name(SMBIOS type 41 string) of the PCI device. + The attribute will be created only if the firmware + has given a name to the PCI device. +Users: + Userspace applications interested in knowing the + firmware assigned name of the PCI device. + +What: /sys/bus/pci/devices/.../index +Date: July 2010 +Contact: Narendra K <narendra_k@dell.com>, linux-bugs@dell.com +Description: + Reading this attribute will provide the firmware + given instance(SMBIOS type 41 device type instance) + of the PCI device. The attribute will be created + only if the firmware has given a device type instance + to the PCI device. +Users: + Userspace applications interested in knowing the + firmware assigned device type instance of the PCI + device that can help in understanding the firmware + intended order of the PCI device. diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb index a07c0f366f91..294aa864a60a 100644 --- a/Documentation/ABI/testing/sysfs-bus-usb +++ b/Documentation/ABI/testing/sysfs-bus-usb @@ -14,34 +14,6 @@ Description: The autosuspend delay for newly-created devices is set to the value of the usbcore.autosuspend module parameter. -What: /sys/bus/usb/devices/.../power/level -Date: March 2007 -KernelVersion: 2.6.21 -Contact: Alan Stern <stern@rowland.harvard.edu> -Description: - Each USB device directory will contain a file named - power/level. This file holds a power-level setting for - the device, either "on" or "auto". - - "on" means that the device is not allowed to autosuspend, - although normal suspends for system sleep will still - be honored. "auto" means the device will autosuspend - and autoresume in the usual manner, according to the - capabilities of its driver. - - During normal use, devices should be left in the "auto" - level. The "on" level is meant for administrative uses. - If you want to suspend a device immediately but leave it - free to wake up in response to I/O requests, you should - write "0" to power/autosuspend. - - Device not capable of proper suspend and resume should be - left in the "on" level. Although the USB spec requires - devices to support suspend/resume, many of them do not. - In fact so many don't that by default, the USB core - initializes all non-hub devices in the "on" level. Some - drivers may change this setting when they are bound. - What: /sys/bus/usb/devices/.../power/persist Date: May 2007 KernelVersion: 2.6.23 @@ -159,3 +131,14 @@ Description: device. This is useful to ensure auto probing won't match the driver to the device. For example: # echo "046d c315" > /sys/bus/usb/drivers/foo/remove_id + +What: /sys/bus/usb/device/.../avoid_reset_quirk +Date: December 2009 +Contact: Oliver Neukum <oliver@neukum.org> +Description: + Writing 1 to this file tells the kernel that this + device will morph into another mode when it is reset. + Drivers will not use reset for error handling for + such devices. +Users: + usb_modeswitch diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power new file mode 100644 index 000000000000..78c7baca3587 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-power @@ -0,0 +1,20 @@ +What: /sys/class/power/ds2760-battery.*/charge_now +Date: May 2010 +KernelVersion: 2.6.35 +Contact: Daniel Mack <daniel@caiaq.de> +Description: + This file is writeable and can be used to set the current + coloumb counter value inside the battery monitor chip. This + is needed for unavoidable corrections of aging batteries. + A userspace daemon can monitor the battery charging logic + and once the counter drops out of considerable bounds, take + appropriate action. + +What: /sys/class/power/ds2760-battery.*/charge_full +Date: May 2010 +KernelVersion: 2.6.35 +Contact: Daniel Mack <daniel@caiaq.de> +Description: + This file is writeable and can be used to set the assumed + battery 'full level'. As batteries age, this value has to be + amended over time. diff --git a/Documentation/ABI/testing/sysfs-devices-memory b/Documentation/ABI/testing/sysfs-devices-memory index bf1627b02a03..7405de26ee60 100644 --- a/Documentation/ABI/testing/sysfs-devices-memory +++ b/Documentation/ABI/testing/sysfs-devices-memory @@ -7,7 +7,7 @@ Description: added or removed dynamically to represent hot-add/remove operations. Users: hotplug memory add/remove tools - https://w3.opensource.ibm.com/projects/powerpc-utils/ + http://www.ibm.com/developerworks/wikis/display/LinuxP/powerpc-utils What: /sys/devices/system/memory/memoryX/removable Date: June 2008 @@ -19,7 +19,7 @@ Description: identify removable sections of the memory before attempting potentially expensive hot-remove memory operation Users: hotplug memory remove tools - https://w3.opensource.ibm.com/projects/powerpc-utils/ + http://www.ibm.com/developerworks/wikis/display/LinuxP/powerpc-utils What: /sys/devices/system/memory/memoryX/phys_device Date: September 2008 @@ -43,7 +43,7 @@ Date: September 2008 Contact: Badari Pulavarty <pbadari@us.ibm.com> Description: The file /sys/devices/system/memory/memoryX/state - is read-write. When read, it's contents show the + is read-write. When read, its contents show the online/offline state of the memory section. When written, root can toggle the the online/offline state of a removable memory section (see removable file description above) @@ -58,7 +58,7 @@ Description: by root to offline that section. # echo offline > /sys/devices/system/memory/memory22/state Users: hotplug memory remove tools - https://w3.opensource.ibm.com/projects/powerpc-utils/ + http://www.ibm.com/developerworks/wikis/display/LinuxP/powerpc-utils What: /sys/devices/system/memoryX/nodeY diff --git a/Documentation/ABI/testing/sysfs-devices-node b/Documentation/ABI/testing/sysfs-devices-node new file mode 100644 index 000000000000..453a210c3ceb --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-node @@ -0,0 +1,7 @@ +What: /sys/devices/system/node/nodeX/compact +Date: February 2010 +Contact: Mel Gorman <mel@csn.ul.ie> +Description: + When this file is written to, all memory within that node + will be compacted. When it completes, memory will be freed + into blocks which have as many contiguous pages as possible diff --git a/Documentation/ABI/testing/sysfs-devices-platform-_UDC_-gadget b/Documentation/ABI/testing/sysfs-devices-platform-_UDC_-gadget new file mode 100644 index 000000000000..d548eaac230a --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-platform-_UDC_-gadget @@ -0,0 +1,21 @@ +What: /sys/devices/platform/_UDC_/gadget/suspended +Date: April 2010 +Contact: Fabien Chouteau <fabien.chouteau@barco.com> +Description: + Show the suspend state of an USB composite gadget. + 1 -> suspended + 0 -> resumed + + (_UDC_ is the name of the USB Device Controller driver) + +What: /sys/devices/platform/_UDC_/gadget/gadget-lunX/nofua +Date: July 2010 +Contact: Andy Shevchenko <andy.shevchenko@gmail.com> +Description: + Show or set the reaction on the FUA (Force Unit Access) bit in + the SCSI WRITE(10,12) commands when a gadget in USB Mass + Storage mode. + + Possible values are: + 1 -> ignore the FUA flag + 0 -> obey the FUA flag diff --git a/Documentation/ABI/testing/sysfs-devices-power b/Documentation/ABI/testing/sysfs-devices-power new file mode 100644 index 000000000000..6123c523bfd7 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-power @@ -0,0 +1,79 @@ +What: /sys/devices/.../power/ +Date: January 2009 +Contact: Rafael J. Wysocki <rjw@sisk.pl> +Description: + The /sys/devices/.../power directory contains attributes + allowing the user space to check and modify some power + management related properties of given device. + +What: /sys/devices/.../power/wakeup +Date: January 2009 +Contact: Rafael J. Wysocki <rjw@sisk.pl> +Description: + The /sys/devices/.../power/wakeup attribute allows the user + space to check if the device is enabled to wake up the system + from sleep states, such as the memory sleep state (suspend to + RAM) and hibernation (suspend to disk), and to enable or disable + it to do that as desired. + + Some devices support "wakeup" events, which are hardware signals + used to activate the system from a sleep state. Such devices + have one of the following two values for the sysfs power/wakeup + file: + + + "enabled\n" to issue the events; + + "disabled\n" not to do so; + + In that cases the user space can change the setting represented + by the contents of this file by writing either "enabled", or + "disabled" to it. + + For the devices that are not capable of generating system wakeup + events this file contains "\n". In that cases the user space + cannot modify the contents of this file and the device cannot be + enabled to wake up the system. + +What: /sys/devices/.../power/control +Date: January 2009 +Contact: Rafael J. Wysocki <rjw@sisk.pl> +Description: + The /sys/devices/.../power/control attribute allows the user + space to control the run-time power management of the device. + + All devices have one of the following two values for the + power/control file: + + + "auto\n" to allow the device to be power managed at run time; + + "on\n" to prevent the device from being power managed; + + The default for all devices is "auto", which means that they may + be subject to automatic power management, depending on their + drivers. Changing this attribute to "on" prevents the driver + from power managing the device at run time. Doing that while + the device is suspended causes it to be woken up. + +What: /sys/devices/.../power/async +Date: January 2009 +Contact: Rafael J. Wysocki <rjw@sisk.pl> +Description: + The /sys/devices/.../async attribute allows the user space to + enable or diasble the device's suspend and resume callbacks to + be executed asynchronously (ie. in separate threads, in parallel + with the main suspend/resume thread) during system-wide power + transitions (eg. suspend to RAM, hibernation). + + All devices have one of the following two values for the + power/async file: + + + "enabled\n" to permit the asynchronous suspend/resume; + + "disabled\n" to forbid it; + + The value of this attribute may be changed by writing either + "enabled", or "disabled" to it. + + It generally is unsafe to permit the asynchronous suspend/resume + of a device unless it is certain that all of the PM dependencies + of the device are known to the PM core. However, for some + devices this attribute is set to "enabled" by bus type code or + device drivers and in that cases it should be safe to leave the + default value. diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 84a710f87c64..7564e88bfa43 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -197,7 +197,7 @@ Description: These files exist in every cpu's cache index directories. Currently, only AMD Family 10h Processors support cache index disable, and only for their L3 caches. See the BIOS and Kernel Developer's Guide at - http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31116-Public-GH-BKDG_3.20_2-4-09.pdf + http://support.amd.com/us/Embedded_TechDocs/31116-Public-GH-BKDG_3-28_5-28-09.pdf for formatting information and other details on the cache index disable. Users: joachim.deguara@amd.com diff --git a/Documentation/ABI/testing/sysfs-driver-hid-picolcd b/Documentation/ABI/testing/sysfs-driver-hid-picolcd new file mode 100644 index 000000000000..08579e7e1e89 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-hid-picolcd @@ -0,0 +1,43 @@ +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/operation_mode +Date: March 2010 +Contact: Bruno Prémont <bonbons@linux-vserver.org> +Description: Make it possible to switch the PicoLCD device between LCD + (firmware) and bootloader (flasher) operation modes. + + Reading: returns list of available modes, the active mode being + enclosed in brackets ('[' and ']') + + Writing: causes operation mode switch. Permitted values are + the non-active mode names listed when read. + + Note: when switching mode the current PicoLCD HID device gets + disconnected and reconnects after above delay (see attribute + operation_mode_delay for its value). + + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/operation_mode_delay +Date: April 2010 +Contact: Bruno Prémont <bonbons@linux-vserver.org> +Description: Delay PicoLCD waits before restarting in new mode when + operation_mode has changed. + + Reading/Writing: It is expressed in ms and permitted range is + 0..30000ms. + + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/fb_update_rate +Date: March 2010 +Contact: Bruno Prémont <bonbons@linux-vserver.org> +Description: Make it possible to adjust defio refresh rate. + + Reading: returns list of available refresh rates (expressed in Hz), + the active refresh rate being enclosed in brackets ('[' and ']') + + Writing: accepts new refresh rate expressed in integer Hz + within permitted rates. + + Note: As device can barely do 2 complete refreshes a second + it only makes sense to adjust this value if only one or two + tiles get changed and it's not appropriate to expect the application + to flush it's tiny changes explicitely at higher than default rate. + diff --git a/Documentation/ABI/testing/sysfs-driver-hid-prodikeys b/Documentation/ABI/testing/sysfs-driver-hid-prodikeys new file mode 100644 index 000000000000..05d988c29a83 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-hid-prodikeys @@ -0,0 +1,29 @@ +What: /sys/bus/hid/drivers/prodikeys/.../channel +Date: April 2010 +KernelVersion: 2.6.34 +Contact: Don Prince <dhprince.devel@yahoo.co.uk> +Description: + Allows control (via software) the midi channel to which + that the pc-midi keyboard will output.midi data. + Range: 0..15 + Type: Read/write +What: /sys/bus/hid/drivers/prodikeys/.../sustain +Date: April 2010 +KernelVersion: 2.6.34 +Contact: Don Prince <dhprince.devel@yahoo.co.uk> +Description: + Allows control (via software) the sustain duration of a + note held by the pc-midi driver. + 0 means sustain mode is disabled. + Range: 0..5000 (milliseconds) + Type: Read/write +What: /sys/bus/hid/drivers/prodikeys/.../octave +Date: April 2010 +KernelVersion: 2.6.34 +Contact: Don Prince <dhprince.devel@yahoo.co.uk> +Description: + Controls the octave shift modifier in the pc-midi driver. + The octave can be shifted via software up/down 2 octaves. + 0 means the no ocatve shift. + Range: -2..2 (minus 2 to plus 2) + Type: Read/Write diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-kone b/Documentation/ABI/testing/sysfs-driver-hid-roccat-kone new file mode 100644 index 000000000000..063bda7fe707 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-kone @@ -0,0 +1,98 @@ +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/actual_dpi +Date: March 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: It is possible to switch the dpi setting of the mouse with the + press of a button. + When read, this file returns the raw number of the actual dpi + setting reported by the mouse. This number has to be further + processed to receive the real dpi value. + + VALUE DPI + 1 800 + 2 1200 + 3 1600 + 4 2000 + 5 2400 + 6 3200 + + This file is readonly. + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/actual_profile +Date: March 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: When read, this file returns the number of the actual profile. + This file is readonly. + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/firmware_version +Date: March 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: When read, this file returns the raw integer version number of the + firmware reported by the mouse. Using the integer value eases + further usage in other programs. To receive the real version + number the decimal point has to be shifted 2 positions to the + left. E.g. a returned value of 138 means 1.38 + This file is readonly. + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/profile[1-5] +Date: March 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The mouse can store 5 profiles which can be switched by the + press of a button. A profile holds informations like button + mappings, sensitivity, the colors of the 5 leds and light + effects. + When read, these files return the respective profile. The + returned data is 975 bytes in size. + When written, this file lets one write the respective profile + data back to the mouse. The data has to be 975 bytes long. + The mouse will reject invalid data, whereas the profile number + stored in the profile doesn't need to fit the number of the + store. + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/settings +Date: March 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: When read, this file returns the settings stored in the mouse. + The size of the data is 36 bytes and holds information like the + startup_profile, tcu state and calibration_data. + When written, this file lets write settings back to the mouse. + The data has to be 36 bytes long. The mouse will reject invalid + data. + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/startup_profile +Date: March 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The integer value of this attribute ranges from 1 to 5. + When read, this attribute returns the number of the profile + that's active when the mouse is powered on. + When written, this file sets the number of the startup profile + and the mouse activates this profile immediately. + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/tcu +Date: March 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The mouse has a "Tracking Control Unit" which lets the user + calibrate the laser power to fit the mousepad surface. + When read, this file returns the current state of the TCU, + where 0 means off and 1 means on. + Writing 0 in this file will switch the TCU off. + Writing 1 in this file will start the calibration which takes + around 6 seconds to complete and activates the TCU. + +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/weight +Date: March 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The mouse can be equipped with one of four supplied weights + ranging from 5 to 20 grams which are recognized by the mouse + and its value can be read out. When read, this file returns the + raw value returned by the mouse which eases further processing + in other software. + The values map to the weights as follows: + + VALUE WEIGHT + 0 none + 1 5g + 2 10g + 3 15g + 4 20g + + This file is readonly. diff --git a/Documentation/ABI/testing/sysfs-firmware-sfi b/Documentation/ABI/testing/sysfs-firmware-sfi new file mode 100644 index 000000000000..4be7d44aeacf --- /dev/null +++ b/Documentation/ABI/testing/sysfs-firmware-sfi @@ -0,0 +1,15 @@ +What: /sys/firmware/sfi/tables/ +Date: May 2010 +Contact: Len Brown <lenb@kernel.org> +Description: + SFI defines a number of small static memory tables + so the kernel can get platform information from firmware. + + The tables are defined in the latest SFI specification: + http://simplefirmware.org/documentation + + While the tables are used by the kernel, user-space + can observe them this way: + + # cd /sys/firmware/sfi/tables + # cat $TABLENAME > $TABLENAME.bin diff --git a/Documentation/ABI/testing/sysfs-i2c-bmp085 b/Documentation/ABI/testing/sysfs-i2c-bmp085 new file mode 100644 index 000000000000..585962ad0465 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-i2c-bmp085 @@ -0,0 +1,31 @@ +What: /sys/bus/i2c/devices/<busnum>-<devaddr>/pressure0_input +Date: June 2010 +Contact: Christoph Mair <christoph.mair@gmail.com> +Description: Start a pressure measurement and read the result. Values + represent the ambient air pressure in pascal (0.01 millibar). + + Reading: returns the current air pressure. + + +What: /sys/bus/i2c/devices/<busnum>-<devaddr>/temp0_input +Date: June 2010 +Contact: Christoph Mair <christoph.mair@gmail.com> +Description: Measure the ambient temperature. The returned value represents + the ambient temperature in units of 0.1 degree celsius. + + Reading: returns the current temperature. + + +What: /sys/bus/i2c/devices/<busnum>-<devaddr>/oversampling +Date: June 2010 +Contact: Christoph Mair <christoph.mair@gmail.com> +Description: Tell the bmp085 to use more samples to calculate a pressure + value. When writing to this file the chip will use 2^x samples + to calculate the next pressure value with x being the value + written. Using this feature will decrease RMS noise and + increase the measurement time. + + Reading: returns the current oversampling setting. + + Writing: sets a new oversampling setting. + Accepted values: 0..3. diff --git a/Documentation/ABI/testing/sysfs-platform-asus-laptop b/Documentation/ABI/testing/sysfs-platform-asus-laptop index a1cb660c50cf..1d775390e856 100644 --- a/Documentation/ABI/testing/sysfs-platform-asus-laptop +++ b/Documentation/ABI/testing/sysfs-platform-asus-laptop @@ -1,4 +1,4 @@ -What: /sys/devices/platform/asus-laptop/display +What: /sys/devices/platform/asus_laptop/display Date: January 2007 KernelVersion: 2.6.20 Contact: "Corentin Chary" <corentincj@iksaif.net> @@ -13,7 +13,7 @@ Description: Ex: - 0 (0000b) means no display - 3 (0011b) CRT+LCD. -What: /sys/devices/platform/asus-laptop/gps +What: /sys/devices/platform/asus_laptop/gps Date: January 2007 KernelVersion: 2.6.20 Contact: "Corentin Chary" <corentincj@iksaif.net> @@ -21,7 +21,7 @@ Description: Control the gps device. 1 means on, 0 means off. Users: Lapsus -What: /sys/devices/platform/asus-laptop/ledd +What: /sys/devices/platform/asus_laptop/ledd Date: January 2007 KernelVersion: 2.6.20 Contact: "Corentin Chary" <corentincj@iksaif.net> @@ -29,11 +29,11 @@ Description: Some models like the W1N have a LED display that can be used to display several informations. To control the LED display, use the following : - echo 0x0T000DDD > /sys/devices/platform/asus-laptop/ + echo 0x0T000DDD > /sys/devices/platform/asus_laptop/ where T control the 3 letters display, and DDD the 3 digits display. The DDD table can be found in Documentation/laptops/asus-laptop.txt -What: /sys/devices/platform/asus-laptop/bluetooth +What: /sys/devices/platform/asus_laptop/bluetooth Date: January 2007 KernelVersion: 2.6.20 Contact: "Corentin Chary" <corentincj@iksaif.net> @@ -42,7 +42,7 @@ Description: This may control the led, the device or both. Users: Lapsus -What: /sys/devices/platform/asus-laptop/wlan +What: /sys/devices/platform/asus_laptop/wlan Date: January 2007 KernelVersion: 2.6.20 Contact: "Corentin Chary" <corentincj@iksaif.net> diff --git a/Documentation/ABI/testing/sysfs-platform-eeepc-laptop b/Documentation/ABI/testing/sysfs-platform-eeepc-laptop index 7445dfb321b5..5b026c69587a 100644 --- a/Documentation/ABI/testing/sysfs-platform-eeepc-laptop +++ b/Documentation/ABI/testing/sysfs-platform-eeepc-laptop @@ -1,4 +1,4 @@ -What: /sys/devices/platform/eeepc-laptop/disp +What: /sys/devices/platform/eeepc/disp Date: May 2008 KernelVersion: 2.6.26 Contact: "Corentin Chary" <corentincj@iksaif.net> @@ -9,21 +9,21 @@ Description: - 3 = LCD+CRT If you run X11, you should use xrandr instead. -What: /sys/devices/platform/eeepc-laptop/camera +What: /sys/devices/platform/eeepc/camera Date: May 2008 KernelVersion: 2.6.26 Contact: "Corentin Chary" <corentincj@iksaif.net> Description: Control the camera. 1 means on, 0 means off. -What: /sys/devices/platform/eeepc-laptop/cardr +What: /sys/devices/platform/eeepc/cardr Date: May 2008 KernelVersion: 2.6.26 Contact: "Corentin Chary" <corentincj@iksaif.net> Description: Control the card reader. 1 means on, 0 means off. -What: /sys/devices/platform/eeepc-laptop/cpufv +What: /sys/devices/platform/eeepc/cpufv Date: Jun 2009 KernelVersion: 2.6.31 Contact: "Corentin Chary" <corentincj@iksaif.net> @@ -42,7 +42,7 @@ Description: `------------ Availables modes For example, 0x301 means: mode 1 selected, 3 available modes. -What: /sys/devices/platform/eeepc-laptop/available_cpufv +What: /sys/devices/platform/eeepc/available_cpufv Date: Jun 2009 KernelVersion: 2.6.31 Contact: "Corentin Chary" <corentincj@iksaif.net> diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power index dcff4d0623ad..2875f1f74a07 100644 --- a/Documentation/ABI/testing/sysfs-power +++ b/Documentation/ABI/testing/sysfs-power @@ -101,3 +101,31 @@ Description: CAUTION: Using it will cause your machine's real-time (CMOS) clock to be set to a random invalid time after a resume. + +What: /sys/power/pm_async +Date: January 2009 +Contact: Rafael J. Wysocki <rjw@sisk.pl> +Description: + The /sys/power/pm_async file controls the switch allowing the + user space to enable or disable asynchronous suspend and resume + of devices. If enabled, this feature will cause some device + drivers' suspend and resume callbacks to be executed in parallel + with each other and with the main suspend thread. It is enabled + if this file contains "1", which is the default. It may be + disabled by writing "0" to this file, in which case all devices + will be suspended and resumed synchronously. + +What: /sys/power/wakeup_count +Date: July 2010 +Contact: Rafael J. Wysocki <rjw@sisk.pl> +Description: + The /sys/power/wakeup_count file allows user space to put the + system into a sleep state while taking into account the + concurrent arrival of wakeup events. Reading from it returns + the current number of registered wakeup events and it blocks if + some wakeup events are being processed at the time the file is + read from. Writing to it will only succeed if the current + number of wakeup events is equal to the written value and, if + successful, will make the kernel abort a subsequent transition + to a sleep state if any wakeup events are reported after the + write has returned. diff --git a/Documentation/ABI/testing/sysfs-wacom b/Documentation/ABI/testing/sysfs-wacom new file mode 100644 index 000000000000..1517976e25c4 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-wacom @@ -0,0 +1,10 @@ +What: /sys/class/hidraw/hidraw*/device/speed +Date: April 2010 +Kernel Version: 2.6.35 +Contact: linux-bluetooth@vger.kernel.org +Description: + The /sys/class/hidraw/hidraw*/device/speed file controls + reporting speed of wacom bluetooth tablet. Reading from + this file returns 1 if tablet reports in high speed mode + or 0 otherwise. Writing to this file one of these values + switches reporting speed. |