libusb: Add transfer type filter to get correct ep

[openocd.git] / src / jtag / drivers / libusb0_common.c

diff --git a/src/jtag/drivers/libusb0_common.c b/src/jtag/drivers/libusb0_common.c
index e319751a34a3ed9790ddefd12002e619e9023710..1825543e2b7dda5a5d9cc8dca8358cc4509b4479 100644 (file)
--- a/src/jtag/drivers/libusb0_common.c
+++ b/src/jtag/drivers/libusb0_common.c
@@ -146,7 +146,7 @@ int jtag_libusb_set_configuration(jtag_libusb_device_handle *devh,
 int jtag_libusb_choose_interface(struct jtag_libusb_device_handle *devh,
                unsigned int *usb_read_ep,
                unsigned int *usb_write_ep,
-               int bclass, int subclass, int protocol)
+               int bclass, int subclass, int protocol, int trans_type)
 {
        struct jtag_libusb_device *udev = jtag_libusb_get_device(devh);
        struct usb_interface *iface = udev->config->interface;
@@ -157,7 +157,8 @@ int jtag_libusb_choose_interface(struct jtag_libusb_device_handle *devh,
        for (int i = 0; i < desc->bNumEndpoints; i++) {
                if ((bclass > 0 && desc->bInterfaceClass != bclass) ||
                    (subclass > 0 && desc->bInterfaceSubClass != subclass) ||
-                   (protocol > 0 && desc->bInterfaceProtocol != protocol))
+                   (protocol > 0 && desc->bInterfaceProtocol != protocol) ||
+                   (trans_type > 0 && (desc->endpoint[i].bmAttributes & 0x3) != trans_type))
                        continue;
 
                uint8_t epnum = desc->endpoint[i].bEndpointAddress;