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Diffstat (limited to 'Documentation/media/dvb-drivers/udev.rst')
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diff --git a/Documentation/media/dvb-drivers/udev.rst b/Documentation/media/dvb-drivers/udev.rst deleted file mode 100644 index ca6c9c226902..000000000000 --- a/Documentation/media/dvb-drivers/udev.rst +++ /dev/null @@ -1,63 +0,0 @@ -.. SPDX-License-Identifier: GPL-2.0 - -UDEV rules for DVB -================== - -.. note:: - - #) This documentation is outdated. Udev on modern distributions auto-detect - the DVB devices. - - #) **TODO:** change this document to explain how to make DVB devices - persistent, as, when a machine has multiple devices, they may be detected - on different orders, which could cause apps that relies on the device - numbers to fail. - -The DVB subsystem currently registers to the sysfs subsystem using the -"class_simple" interface. - -This means that only the basic information like module loading parameters -are presented through sysfs. Other things that might be interesting are -currently **not** available. - -Nevertheless it's now possible to add proper udev rules so that the -DVB device nodes are created automatically. - -We assume that you have udev already up and running and that have been -creating the DVB device nodes manually up to now due to the missing sysfs -support. - -0. Don't forget to disable your current method of creating the -device nodes manually. - -1. Unfortunately, you'll need a helper script to transform the kernel -sysfs device name into the well known dvb adapter / device naming scheme. -The script should be called "dvb.sh" and should be placed into a script -dir where udev can execute it, most likely /etc/udev/scripts/ - -So, create a new file /etc/udev/scripts/dvb.sh and add the following: - -.. code-block:: none - - #!/bin/sh - /bin/echo $1 | /bin/sed -e 's,dvb\([0-9]\)\.\([^0-9]*\)\([0-9]\),dvb/adapter\1/\2\3,' - -Don't forget to make the script executable with "chmod". - -1. You need to create a proper udev rule that will create the device nodes -like you know them. All real distributions out there scan the /etc/udev/rules.d -directory for rule files. The main udev configuration file /etc/udev/udev.conf -will tell you the directory where the rules are, most likely it's /etc/udev/rules.d/ - -Create a new rule file in that directory called "dvb.rule" and add the following line: - -.. code-block:: none - - KERNEL="dvb*", PROGRAM="/etc/udev/scripts/dvb.sh %k", NAME="%c" - -If you want more control over the device nodes (for example a special group membership) -have a look at "man udev". - -For every device that registers to the sysfs subsystem with a "dvb" prefix, -the helper script /etc/udev/scripts/dvb.sh is invoked, which will then -create the proper device node in your /dev/ directory. |