V4L/DVB (6058): ivtv: add support for highmem udma

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When trying to DMA userspace buffers to the cx23415 you need to check
whether the page is in highmem. If this is the case, then bounce buffers
have to be used to allow DMA.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

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Hans Verkuil 2007-08-19 12:25:39 -03:00 • committed by Mauro Carvalho Chehab

parent 3869c6a088

commit 0989fd2c88

3 changed files with 47 additions and 9 deletions

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2

drivers/media/video/ivtv/ivtv-driver.h

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45

drivers/media/video/ivtv/ivtv-udma.c

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9

drivers/media/video/ivtv/ivtv-yuv.c

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