From: Fredrik Thulin <fredrik@yubico.com>
Date: Thu, 30 Dec 2010 19:42:46 +0000 (+0100)
Subject: _ykusb_open_device: Detach kernel HID driver.
X-Git-Tag: v1.4.0~22^2
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=919d5ad91365337f33c1abbdb30474f5373194e1;p=yubikey-personalization

_ykusb_open_device: Detach kernel HID driver.

This avoids the

  USB error: could not claim interface 0: Device or resource busy

when linking with libusb-0.1 - at least on Ubuntu 10.04.
---

diff --git a/ykcore/ykcore_libusb.c b/ykcore/ykcore_libusb.c
index 8d8c835..287b5ac 100644
--- a/ykcore/ykcore_libusb.c
+++ b/ykcore/ykcore_libusb.c
@@ -159,6 +159,8 @@ void *_ykusb_open_device(int vendor_id, int product_id)
 			    && dev->descriptor.idProduct == YUBIKEY_PID) {
 				rc = YK_EUSBERR;
 				h = usb_open(dev);
+				if (h != NULL)
+					usb_detach_kernel_driver_np(h, 0);
 				goto done;
 			}
 	}