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authorHans Petter Selasky <hselasky@FreeBSD.org>2011-02-28 17:23:15 +0000
committerHans Petter Selasky <hselasky@FreeBSD.org>2011-02-28 17:23:15 +0000
commit1c49736857cfe0b562e2f1e100ab2307e882a9e6 (patch)
tree47ed63016899826a83fbbc10b56bb53c1b6d65cd /sys/dev/usb/usbdi.h
parent898899d9ddbd15925a9d3c6b1da0d426dbc6351b (diff)
downloadsrc-1c49736857cfe0b562e2f1e100ab2307e882a9e6.tar.gz
src-1c49736857cfe0b562e2f1e100ab2307e882a9e6.zip
- Add support for software pre-scaling of ISOCHRONOUS transfers.
MFC after: 14 days Approved by: thompsa (mentor)
Notes
Notes: svn path=/head/; revision=219100
Diffstat (limited to 'sys/dev/usb/usbdi.h')
-rw-r--r--sys/dev/usb/usbdi.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/sys/dev/usb/usbdi.h b/sys/dev/usb/usbdi.h
index 6d4a911b0d13..b88a65557aac 100644
--- a/sys/dev/usb/usbdi.h
+++ b/sys/dev/usb/usbdi.h
@@ -195,6 +195,16 @@ struct usb_xfer_flags {
uint8_t stall_pipe:1; /* set if the endpoint belonging to
* this USB transfer should be stalled
* before starting this transfer! */
+ uint8_t pre_scale_frames:1; /* "usb_config->frames" is
+ * assumed to give the
+ * buffering time in
+ * milliseconds and is
+ * converted into the nearest
+ * number of frames when the
+ * USB transfer is setup. This
+ * option only has effect for
+ * ISOCHRONOUS transfers.
+ */
};
/*