Author: hselasky
Date: Fri Apr 11 14:11:55 2014
New Revision: 264344
URL: http://svnweb.freebsd.org/changeset/base/264344
Log:
Tune buffer sizes for SuperSpeed USB when using LibUSB v0.1 and v1.0
APIs to increase the maximum bandwidth limit.
MFC after: 1 week
Modified:
head/lib/libusb/libusb01.c
head/lib/libusb/libusb10.c
Modified: head/lib/libusb/libusb01.c
==============================================================================
--- head/lib/libusb/libusb01.c Fri Apr 11 13:48:45 2014 (r264343)
+++ head/lib/libusb/libusb01.c Fri Apr 11 14:11:55 2014 (r264344)
@@ -127,6 +127,8 @@ usb_get_transfer_by_ep_no(usb_dev_handle
bufsize = 256;
} else if (speed == LIBUSB20_SPEED_FULL) {
bufsize = 4096;
+ } else if (speed == LIBUSB20_SPEED_SUPER) {
+ bufsize = 65536;
} else {
bufsize = 16384;
}
Modified: head/lib/libusb/libusb10.c
==============================================================================
--- head/lib/libusb/libusb10.c Fri Apr 11 13:48:45 2014 (r264343)
+++ head/lib/libusb/libusb10.c Fri Apr 11 14:11:55 2014 (r264344)
@@ -935,6 +935,9 @@ libusb10_get_buffsize(struct libusb20_de
case LIBUSB20_SPEED_FULL:
ret = 4096;
break;
+ case LIBUSB20_SPEED_SUPER:
+ ret = 65536;
+ break;
default:
ret = 16384;
break;
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