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From: Hans Petter Selasky <hselasky@FreeBSD.org>
Date: Fri, 11 Apr 2014 14:11:55 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r264344 - head/lib/libusb
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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;