diff options
Diffstat (limited to 'share/man/man9/bus_dma.9')
| -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. |
