V4L/DVB (12744): em28xx: restructure fh/dev locking to handle both video and vbi

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The current locking infrastructure didn't support having multiple fds accessing
the device (such as video and vbi).  Rework the locking infrastructure,
borrowing the design from cx88.

This work was sponsored by EyeMagnet Limited.

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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Devin Heitmueller 2009-09-03 00:23:27 -03:00 • committed by Mauro Carvalho Chehab

parent 91f6dcec92

commit 8c873d31af

2 changed files with 102 additions and 90 deletions

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202

drivers/media/video/em28xx/em28xx-video.c

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10

drivers/media/video/em28xx/em28xx.h

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