Commit 1c02213e authored Dec 05, 2014 by Jack Pham

fastboot: Support USB 3.x SuperSpeed devices on Linux

When enumerating USB 3.x devices, an extra 6-byte SuperSpeed
companion descriptor follows each standard endpoint descriptor.
The loop parsing the descriptors will stumble if they're not
handled. Since they're not needed once the bulk endpoints are
identified, we can simply skip over them.

Change-Id: I7e73bcf9135f23c3059cd7c55b432557b28cb6ef

parent a48decd4

fastboot/usb_linux.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -223,6 +223,13 @@ static int filter_usb_device(char* sysfs_name,
		} else {
		out = ept->bEndpointAddress;
		}

		// For USB 3.0 devices skip the SS Endpoint Companion descriptor
		if (check((struct usb_descriptor_hdr *)ptr, len,
		USB_DT_SS_ENDPOINT_COMP, USB_DT_SS_EP_COMP_SIZE) == 0) {
		len -= USB_DT_SS_EP_COMP_SIZE;
		ptr += USB_DT_SS_EP_COMP_SIZE;
		}
		}

		info.has_bulk_in = (in != -1);