Commit bab2f3c1 authored Sep 27, 2021 by Mauro Carvalho Chehab Committed by Greg Kroah-Hartman Sep 28, 2021

ABI: sysfs-bus-pci: add a alternative What fields



There are some PCI ABI that aren't shown under:

	/sys/bus/pci/drivers/.../

Because they're registered with a different class. That's
the case of, for instance:

	/sys/bus/i2c/drivers/CHT Whiskey Cove PMIC/unbind

This one is not present under /sys/bus/pci:

	$ find /sys/bus/pci -name 'CHT Whiskey Cove PMIC'

Although clearly this is provided by a PCI driver:

	/sys/devices/pci0000:00/0000:00:02.0/i2c-4/subsystem/drivers/CHT Whiskey Cove PMIC/unbind

So, add an altertate What location in order to match bind/unbind
to such devices.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/15ba8c07f1b0fd7359106920c8e34a7b9af7aea6.1632750608.git.mchehab+huawei@kernel.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 5e588088

Documentation/ABI/testing/sysfs-bus-pci

+4 −0

Original line number	Diff line number	Diff line
		What: /sys/bus/pci/drivers/.../bind
		What: /sys/devices/pciX/.../bind
		Date: December 2003
		Contact: linux-pci@vger.kernel.org
		Description:
		@@ -14,6 +15,7 @@ Description:
		(Note: kernels before 2.6.28 may require echo -n).

		What: /sys/bus/pci/drivers/.../unbind
		What: /sys/devices/pciX/.../unbind
		Date: December 2003
		Contact: linux-pci@vger.kernel.org
		Description:
		@@ -29,6 +31,7 @@ Description:
		(Note: kernels before 2.6.28 may require echo -n).

		What: /sys/bus/pci/drivers/.../new_id
		What: /sys/devices/pciX/.../new_id
		Date: December 2003
		Contact: linux-pci@vger.kernel.org
		Description:
		@@ -47,6 +50,7 @@ Description:
		# echo "8086 10f5" > /sys/bus/pci/drivers/foo/new_id

		What: /sys/bus/pci/drivers/.../remove_id
		What: /sys/devices/pciX/.../remove_id
		Date: February 2009
		Contact: Chris Wright <chrisw@sous-sol.org>
		Description: