V4L/DVB (7886): ivtvfb: Use DMA for write()

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write() operations to the ivtv framebuffer will now attempt to use DMA if the
amount of data to copy is >= 4096 bytes. This change effectively depreciates
the need for the proprietary IVTVFB_IOC_DMA_FRAME ioctl since a write() of
sufficient size will do the same thing.

Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

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Ian Armstrong 2008-05-12 11:53:10 -03:00 • committed by Mauro Carvalho Chehab

parent 5a4f5da655

commit 4cbeb37114

1 changed files with 82 additions and 0 deletions

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drivers/media/video/ivtv/ivtvfb.c

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