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| author |   mpi <mpi@openbsd.org> | 2014-07-12 08:48:19 +0000 |
|---|---|---|
| committer | mpi <mpi@openbsd.org> | 2014-07-12 08:48:19 +0000 |
| commit | c5fa705347e29a87810ac141d319eed1fa9d9207 (patch) | |
| tree | 4e4073e8a74324cfc31d367db454ae065e09e630 | |
| parent | mlarkin found disabled code to print a battleship. improve it and enable. (diff) | |
| download | wireguard-openbsd-c5fa705347e29a87810ac141d319eed1fa9d9207.tar.xz wireguard-openbsd-c5fa705347e29a87810ac141d319eed1fa9d9207.zip | |
Improve the definition of USBD_FORCE_SHORT_XFER, prompted by a question
from stsp@.
| -rw-r--r-- | share/man/man9/usbd_transfer.9 | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/share/man/man9/usbd_transfer.9 b/share/man/man9/usbd_transfer.9 index 75732998d5f..b5c0dd285c3 100644 --- a/share/man/man9/usbd_transfer.9 +++ b/share/man/man9/usbd_transfer.9 @@ -1,4 +1,4 @@ -.\" $OpenBSD: usbd_transfer.9,v 1.3 2014/03/27 13:33:02 jmc Exp $ +.\" $OpenBSD: usbd_transfer.9,v 1.4 2014/07/12 08:48:19 mpi Exp $ .\" .\" Copyright (c) 2013 Martin Pieuchot .\" @@ -14,7 +14,7 @@ .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" -.Dd $Mdocdate: March 27 2014 $ +.Dd $Mdocdate: July 12 2014 $ .Dt USBD_TRANSFER 9 .Os .Sh NAME @@ -69,9 +69,8 @@ Do not report short reads, when the length of the data read is lower than .Fa length , as errors. .It Dv USBD_FORCE_SHORT_XFER -Submit a supplementary zero length packet at the end of the data if -.Fa length -is a multiple of the endpoint's wMaxPacketSize. +Submit a supplementary zero length packet at the end of the written data. +Some requests may need such packet in order to be properly terminated. .It Dv USBD_CATCH Used in conjunction with the .Dv USBD_SYNCHRONOUS |