diff options
| author | Andy Walls | 2009-11-09 03:45:24 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2009-12-05 21:41:51 +0100 |
| commit | 52fcb3ecc6707f52dfe4297f96b7609d4ba517fb (patch) | |
| tree | fe8ecd66c20b10e8b2ba63c667a6afe78c23a2e1 /drivers/media/video/cx18/cx18-mailbox.h | |
| parent | V4L/DVB (13428): cx18: Rename mdl_offset to mdl_base_idx or free_mdl_idx as a... (diff) | |
| download | kernel-qcow2-linux-52fcb3ecc6707f52dfe4297f96b7609d4ba517fb.tar.gz kernel-qcow2-linux-52fcb3ecc6707f52dfe4297f96b7609d4ba517fb.tar.xz kernel-qcow2-linux-52fcb3ecc6707f52dfe4297f96b7609d4ba517fb.zip | |
V4L/DVB (13429): cx18: Add Memory Descriptor List (MDL) layer to buffer handling
Add a Memory Descriptor List (MDL) layer to buffer handling to implement
scatter-gather I/O. Currently there is still only 1 buffer per MDL.
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx18/cx18-mailbox.h')
| -rw-r--r-- | drivers/media/video/cx18/cx18-mailbox.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/media/video/cx18/cx18-mailbox.h b/drivers/media/video/cx18/cx18-mailbox.h index e23aaac5b280..5ea07359904c 100644 --- a/drivers/media/video/cx18/cx18-mailbox.h +++ b/drivers/media/video/cx18/cx18-mailbox.h @@ -39,14 +39,14 @@ struct cx18; /* - * This structure is used by CPU to provide completed buffers information - * Its structure is dictrated by the layout of the SCB, required by the + * This structure is used by CPU to provide completed MDL & buffers information. + * Its structure is dictated by the layout of the SCB, required by the * firmware, but its defintion needs to be here, instead of in cx18-scb.h, * for mailbox work order scheduling */ struct cx18_mdl_ack { u32 id; /* ID of a completed MDL */ - u32 data_used; /* Total data filled in the MDL for buffer 'id' */ + u32 data_used; /* Total data filled in the MDL with 'id' */ }; /* The cx18_mailbox struct is the mailbox structure which is used for passing |