mirror of
https://github.com/torvalds/linux.git
synced 2024-12-23 03:11:46 +00:00
21 lines
1.1 KiB
Plaintext
21 lines
1.1 KiB
Plaintext
|
What: /sys/bus/platform/devices/.../driver_override
|
||
|
|
Date: April 2014
|
||
|
|
Contact: Kim Phillips <kim.phillips@freescale.com>
|
||
|
|
Description:
|
||
|
|
This file allows the driver for a device to be specified which
|
||
|
|
will override standard OF, ACPI, ID table, and name matching.
|
||
|
|
When specified, only a driver with a name matching the value
|
||
|
|
written to driver_override will have an opportunity to bind
|
||
|
|
to the device. The override is specified by writing a string
|
||
|
|
to the driver_override file (echo vfio-platform > \
|
||
|
|
driver_override) and may be cleared with an empty string
|
||
|
|
(echo > driver_override). This returns the device to standard
|
||
|
|
matching rules binding. Writing to driver_override does not
|
||
|
|
automatically unbind the device from its current driver or make
|
||
|
|
any attempt to automatically load the specified driver. If no
|
||
|
|
driver with a matching name is currently loaded in the kernel,
|
||
|
|
the device will not bind to any driver. This also allows
|
||
|
|
devices to opt-out of driver binding using a driver_override
|
||
|
|
name such as "none". Only a single driver may be specified in
|
||
|
|
the override, there is no support for parsing delimiters.
|