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| author | hselasky <hselasky@FreeBSD.org> | 2011-02-28 17:23:15 +0000 |
|---|---|---|
| committer | hselasky <hselasky@FreeBSD.org> | 2011-02-28 17:23:15 +0000 |
| commit | f6b78c32dc9eddf17473d899afedfce320703608 (patch) | |
| tree | 47ed63016899826a83fbbc10b56bb53c1b6d65cd /share/man | |
| parent | 45caeec249c564cc0b81c13ced7f6a677a9216e9 (diff) | |
| download | FreeBSD-src-f6b78c32dc9eddf17473d899afedfce320703608.zip FreeBSD-src-f6b78c32dc9eddf17473d899afedfce320703608.tar.gz | |
- Add support for software pre-scaling of ISOCHRONOUS transfers.
MFC after: 14 days
Approved by: thompsa (mentor)
Diffstat (limited to 'share/man')
| -rw-r--r-- | share/man/man9/usbdi.9 | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/share/man/man9/usbdi.9 b/share/man/man9/usbdi.9 index 501c39f..0e9f9f2 100644 --- a/share/man/man9/usbdi.9 +++ b/share/man/man9/usbdi.9 @@ -593,6 +593,10 @@ use the "usbd_xfer_set_stall()" and "usbd_transfer_clear_stall()" functions! This flag is automatically cleared after that the stall or clear stall has been executed. . +.It pre_scale_frames +If this flag is set the number of frames specified is assumed to give the buffering time in milliseconds instead of frames. +During transfer setup the frames field is pre scaled with the corresponding value for the endpoint and rounded to the nearest number of frames greater than zero. +This option only has effect for ISOCHRONOUS transfers. .El .Pp .Fa bufsize |
