am7xxx: detach kernel driver before claiming the interface

This is needed on some systems like Ubuntu 14.04, but apparently not on
Debian ones.

Thanks-to: Andrea Console <andreaconsole@gmail.com>

diff --git a/src/am7xxx.c b/src/am7xxx.c
index 321a193..1b3b758 100644 (file)
--- a/src/am7xxx.c
+++ b/src/am7xxx.c
@@ -746,6 +746,8 @@ static int open_device(am7xxx_context *ctx,
                }
        }
 
+       libusb_set_auto_detach_kernel_driver((*dev)->usb_device, 1);
+
        ret = libusb_claim_interface((*dev)->usb_device,
                                     (*dev)->desc->interface_number);
        if (ret < 0) {