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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-04-13 23:32:13 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-04-13 23:32:13 +0100 |
| commit | a84bd2ee81ea1bdbd238cd1c380ec25f50a876c5 (patch) | |
| tree | ba054d4b1a20dadec088fd4d8983fb5939227e46 /Documentation/video4linux/pxa_camera.txt | |
| parent | aec995900fbc8cffa9f0f9e797ef07a0beb2b079 (diff) | |
| parent | 7db6a7fa09884b34d2a5d4e6e4ed58664a5f0cf8 (diff) | |
Merge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into fixes
Diffstat (limited to 'Documentation/video4linux/pxa_camera.txt')
| -rw-r--r-- | Documentation/video4linux/pxa_camera.txt | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/video4linux/pxa_camera.txt b/Documentation/video4linux/pxa_camera.txt index 4f6d0ca0195..51ed1578b0e 100644 --- a/Documentation/video4linux/pxa_camera.txt +++ b/Documentation/video4linux/pxa_camera.txt @@ -84,12 +84,12 @@ DMA usage transfer is not started. On "End Of Frame" interrupt, the irq handler starts the DMA chain. - capture of one videobuffer - The DMA chain starts transfering data into videobuffer RAM pages. - When all pages are transfered, the DMA irq is raised on "ENDINTR" status + The DMA chain starts transferring data into videobuffer RAM pages. + When all pages are transferred, the DMA irq is raised on "ENDINTR" status - finishing one videobuffer The DMA irq handler marks the videobuffer as "done", and removes it from the active running queue - Meanwhile, the next videobuffer (if there is one), is transfered by DMA + Meanwhile, the next videobuffer (if there is one), is transferred by DMA - finishing the last videobuffer On the DMA irq of the last videobuffer, the QCI is stopped. @@ -101,7 +101,7 @@ DMA usage This structure is pointed by dma->sg_cpu. The descriptors are used as follows : - - desc-sg[i]: i-th descriptor, transfering the i-th sg + - desc-sg[i]: i-th descriptor, transferring the i-th sg element to the video buffer scatter gather - finisher: has ddadr=DADDR_STOP, dcmd=ENDIRQEN - linker: has ddadr= desc-sg[0] of next video buffer, dcmd=0 |