Documentation/ABI/testing/sysfs-bus-amba

   1 What:           /sys/bus/amba/devices/.../driver_override
   2 Date:           September 2014
   3 Contact:        Antonios Motakis <a.motakis@virtualopensystems.com>
   4 Description:
   5                 This file allows the driver for a device to be specified which
   6                 will override standard OF, ACPI, ID table, and name matching.
   7                 When specified, only a driver with a name matching the value
   8                 written to driver_override will have an opportunity to bind to
   9                 the device. The override is specified by writing a string to the
  10                 driver_override file (echo vfio-amba > driver_override) and may
  11                 be cleared with an empty string (echo > driver_override).
  12                 This returns the device to standard matching rules binding.
  13                 Writing to driver_override does not automatically unbind the
  14                 device from its current driver or make any attempt to
  15                 automatically load the specified driver. If no driver with a
  16                 matching name is currently loaded in the kernel, the device will
  17                 not bind to any driver. This also allows devices to opt-out of
  18                 driver binding using a driver_override name such as "none".
  19                 Only a single driver may be specified in the override, there is
  20                 no support for parsing delimiters.