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V4L/DVB (11351): v4l: use usb_interface for v4l2_device_register

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If usb_interface.dev is used as dev parameter for v4l2_device_register
v4l2_dev.name contains the v4l driver/module name and usb device and
interface instead of a simple "usb x-y".
It also matches the recommendation to set the parent devices for usb
drivers.

Signed-off-by: Janne Grunau <j@jannau.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Janne Grunau 2009-04-01 08:30:06 -03:00 committed by Mauro Carvalho Chehab
parent 6acc81c394
commit 073d696d54
1 changed files with 1 additions and 1 deletions
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Documentation/video4linux/v4l2-framework.txt
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@ -90,7 +90,7 @@ up before calling v4l2_device_register then it will be untouched. If dev is
NULL, then you *must* setup v4l2_dev->name before calling v4l2_device_register.
The first 'dev' argument is normally the struct device pointer of a pci_dev,
usb_device or platform_device. It is rare for dev to be NULL, but it happens
usb_interface or platform_device. It is rare for dev to be NULL, but it happens
with ISA devices or when one device creates multiple PCI devices, thus making
it impossible to associate v4l2_dev with a particular parent.