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V4L/DVB (9593): cx18: Add outgoing mailbox mutexes and check for ack via waitq vs poll

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Add mutexes to ensure exclusive access for outgoing driver to CX23418 mailboxes.
Also wait on a waitq for mailbox acknowledgement from the CX23418 instead of
polling.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andy Walls 2008-11-06 01:15:41 -03:00 • committed by Mauro Carvalho Chehab
commit 72c2d6d3ac
5 changed files with 60 additions and 63 deletions
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