From: Antonio Ospite <ospite@studenti.unina.it>
Date: Wed, 13 Mar 2013 12:28:06 +0000 (+0100)
Subject: Claim interface after detaching it from a possible kernel driver
X-Git-Url: https://git.ao2.it/visomat-utils.git/commitdiff_plain/760d9ce1d8a334800fd138c019a4f08e4a56f990?ds=inline;hp=90e334402a61f769b9876d9c6743b69c3b3d0343

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
--- 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)