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