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2014-04-01HID: uhid: Add UHID_CREATE2 + UHID_INPUT2Petri Gynther1-0/+11
UHID_CREATE2: HID report descriptor data (rd_data) is an array in struct uhid_create2_req, instead of a pointer. Enables use from languages that don't support pointers, e.g. Python. UHID_INPUT2: Data array is the last field of struct uhid_input2_req. Enables userspace to write only the required bytes to kernel (ev.type + ev.u.input2.size + the part of the data array that matters), instead of the entire struct uhid_input2_req. Note: UHID_CREATE2 increases the total size of struct uhid_event slightly, thus increasing the size of messages that are queued for userspace. However, this won't affect the userspace processing of these events. [Jiri Kosina <jkosina@suse.cz>: adjust to hid_get_raw_report() and hid_output_raw_report() API changes] Signed-off-by: Petri Gynther <pgynther@google.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-02-24HID: make .raw_request mandatoryBenjamin Tissoires1-1/+2
SET_REPORT and GET_REPORT are mandatory in the HID specification. Make the corresponding API in hid-core mandatory too, which removes the need to test against it in some various places. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-02-17HID: Add HID transport driver documentationBenjamin Tissoires1-0/+316
Add David Herrmann's documentation for the new low-level HID transport driver functions. Signed-off-by: Frank Praznik <frank.praznik@oh.rr.com> Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-07-31HID: uhid: use generic hidinput_input_event()David Herrmann1-1/+3
HID core provides the same functionality and can convert the input event to a raw output report. We can thus drop UHID_OUTPUT_EV and rely on the mandatory UHID_OUTPUT. User-space wasn't able to do anything with UHID_OUTPUT_EV, anyway. They don't have access to the report fields. Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-12-14HID: remove x bit from sensor docJiri Kosina1-0/+0
Reported-by: Xose Vazquez Perez <xose.vazquez@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-11-19doc: fix quite a few typos within DocumentationMasanari Iida1-1/+1
Correct spelling typo in Documentations Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-09-06HID: sensors: add documentationsrinivas pandruvada1-0/+140
Added a summary of HID sensor framework. Signed-off-by: srinivas pandruvada <srinivas.pandruvada@intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-06-18HID: uhid: add documentationDavid Herrmann1-0/+169
This describes the protocol used by uhid for user-space applications. It describes the details like non-blocking I/O and readv/writev for multiple events per syscall. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-03-22HID: Move hiddev.txt to the new Documentation/hid directoryAlan Ott1-0/+205
With the new Documentation/hid directory, it makes sense to have hiddev.txt here as well. Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-03-22HID: Documentation for hidrawAlan Ott1-0/+119
Documenation for the hidraw driver, with sample program. Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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