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| author | jmg <jmg@FreeBSD.org> | 2006-09-03 00:31:21 +0000 |
|---|---|---|
| committer | jmg <jmg@FreeBSD.org> | 2006-09-03 00:31:21 +0000 |
| commit | 6c51ecb8c425bfdbaedb54467d640136e519382c (patch) | |
| tree | 9480ab5ec9351beacb819672d8617726b53021f2 /share | |
| parent | c25fb06d921a770f65a0f6e25dc1e92e4e1b5227 (diff) | |
| download | FreeBSD-src-6c51ecb8c425bfdbaedb54467d640136e519382c.zip FreeBSD-src-6c51ecb8c425bfdbaedb54467d640136e519382c.tar.gz | |
now that we have bus_get_dma_tag, document it's requirement in
bus_dma_tag_create
Diffstat (limited to 'share')
| -rw-r--r-- | share/man/man9/bus_dma.9 | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/share/man/man9/bus_dma.9 b/share/man/man9/bus_dma.9 index e389802..0f738ac 100644 --- a/share/man/man9/bus_dma.9 +++ b/share/man/man9/bus_dma.9 @@ -328,7 +328,8 @@ the arguments provided: .It Fa parent Indicates restrictions between the parent bridge, CPU memory, and the device. -May be NULL, if no DMA restrictions are to be inherited. +Each device must use a master parent tag by calling +.Fn bus_get_dma_tag . .It Fa alignment Alignment constraint, in bytes, of any mappings created using this tag. The alignment must be a power of 2. |
