commit 0855fd8d9b392794ff9abfe21c2b79acd72a117e
author Robin Getz <robin.getz@analog.com> Fri Oct 26 14:56:30 2018
committer Gwendal Grignou <gwendal@chromium.org> Wed May 01 19:52:15 2019
tree e7690bb496f5fa9c141487a22905f2123c011739
parent 074b125b2dcedccdc10b8a9aa8f2b6a99cc2ae9c

usb: be more verbose when unable to claim an interface

This added the entire usb interface (bus and address) in the error message, which was not there.

Signed-off-by: Robin Getz <robin.getz@analog.com>

usb.c

diff --git a/usb.c b/usb.c
index 2a48744..61b4456 100644
--- a/usb.c
+++ b/usb.c
@@ -844,7 +844,8 @@
 	ret = libusb_claim_interface(hdl, interface);
 	if (ret) {
 		ret = -(int) libusb_to_errno(ret);
-		ERROR("Unable to claim interface %u: %i\n", interface, ret);
+		ERROR("Unable to claim interface %u:%u:%u: %i\n",
+		      bus, address, interface, ret);
 		goto err_libusb_close;
 	}