From f59574f34342073102fe6cad8b533846631f3c8d Mon Sep 17 00:00:00 2001 From: hselasky Date: Fri, 11 Apr 2014 14:11:55 +0000 Subject: 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 --- lib/libusb/libusb01.c | 2 ++ lib/libusb/libusb10.c | 3 +++ 2 files changed, 5 insertions(+) (limited to 'lib/libusb') diff --git a/lib/libusb/libusb01.c b/lib/libusb/libusb01.c index 30a1430..91ae6e2 100644 --- a/lib/libusb/libusb01.c +++ b/lib/libusb/libusb01.c @@ -127,6 +127,8 @@ usb_get_transfer_by_ep_no(usb_dev_handle * dev, uint8_t ep_no) bufsize = 256; } else if (speed == LIBUSB20_SPEED_FULL) { bufsize = 4096; + } else if (speed == LIBUSB20_SPEED_SUPER) { + bufsize = 65536; } else { bufsize = 16384; } diff --git a/lib/libusb/libusb10.c b/lib/libusb/libusb10.c index c795ecf..e8f9314 100644 --- a/lib/libusb/libusb10.c +++ b/lib/libusb/libusb10.c @@ -935,6 +935,9 @@ libusb10_get_buffsize(struct libusb20_device *pdev, libusb_transfer *xfer) case LIBUSB20_SPEED_FULL: ret = 4096; break; + case LIBUSB20_SPEED_SUPER: + ret = 65536; + break; default: ret = 16384; break; -- cgit v1.1