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| author | alfred <alfred@FreeBSD.org> | 2009-07-30 00:11:41 +0000 |
|---|---|---|
| committer | alfred <alfred@FreeBSD.org> | 2009-07-30 00:11:41 +0000 |
| commit | 6c89a5f102e50c4c64fe2243108d70c38997ccec (patch) | |
| tree | 35d9a81dcb5e49cb309382bf22adb81c31afeef6 /lib/libusb/libusb20.3 | |
| parent | eafde3dc55d5265075b824d9b12983759e0e2c50 (diff) | |
| download | FreeBSD-src-6c89a5f102e50c4c64fe2243108d70c38997ccec.zip FreeBSD-src-6c89a5f102e50c4c64fe2243108d70c38997ccec.tar.gz | |
LibUSB v1.0:
- Significantly improve libusb10 support.
- Many minor issues fixed.
- P4 ID: 166189, 165853, 165991, 166052, 166069
Submitted by: hps
Approved by: re
Diffstat (limited to 'lib/libusb/libusb20.3')
| -rw-r--r-- | lib/libusb/libusb20.3 | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/libusb/libusb20.3 b/lib/libusb/libusb20.3 index 403ddba..f902883 100644 --- a/lib/libusb/libusb20.3 +++ b/lib/libusb/libusb20.3 @@ -310,8 +310,13 @@ packets are avoided for proxy buffers. .Pp . .Fn libusb20_tr_get_max_total_length -function will return the maximum value for the length sum of all -USB frames associated with an USB transfer. +function will return the maximum value for the data length sum of all USB +frames associated with an USB transfer. +In case of control transfers the value returned does not include the +length of the SETUP packet, 8 bytes, which is part of frame zero. +The returned value of this function is always aligned to the maximum +packet size, wMaxPacketSize, of the endpoint which the USB transfer is +bound to. . .Pp . |
