Claim interface after detaching it from a possible kernel driver

This avoids error messages like:
  usbfs: process 24665 (myprogram) did not claim interface 1 before use

See also:
  http://stackoverflow.com/questions/11088691

diff --git a/src/visomat-data-downloader.c b/src/visomat-data-downloader.c
index 0eca9c1..08a752a 100644 (file)
--- a/src/visomat-data-downloader.c
+++ b/src/visomat-data-downloader.c
@@ -315,8 +315,8 @@ int main(void)
        }
 
        libusb_set_configuration(dev, 1);
-       libusb_claim_interface(dev, 1);
        libusb_detach_kernel_driver(dev, 1);
+       libusb_claim_interface(dev, 1);
 
        ret = visomat_get_datetime(dev);
        if (ret < 0)