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Tune buffer sizes for SuperSpeed USB when using LibUSB v0.1 and v1.0

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APIs to increase the maximum bandwidth limit.

MFC after:	1 week
This commit is contained in:
hselasky 2014-04-11 14:11:55 +00:00
parent 8606a0a992
commit f59574f343
2 changed files with 5 additions and 0 deletions
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2
lib/libusb/libusb01.c
View File

@ -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;
}

3
lib/libusb/libusb10.c
View File

@ -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;