Re: [sigrok-devel] [PATCH 1/2] saleae-logic16: claim device before using it

[Sean Y. <se...@me...>]

On Sat, Oct 12, 2013 at 08:52:54PM +0100, Sean Young wrote:
> ---
>  hardware/saleae-logic16/api.c | 40 +++++++++++++++++++---------------------
>  1 file changed, 19 insertions(+), 21 deletions(-)
> 
> diff --git a/hardware/saleae-logic16/api.c b/hardware/saleae-logic16/api.c
> index a12143a..c0c4b62 100644
> --- a/hardware/saleae-logic16/api.c
> +++ b/hardware/saleae-logic16/api.c
> @@ -308,6 +308,25 @@ static int logic16_dev_open(struct sr_dev_inst *sdi)
>  			break;
>  		}
>  
> +		ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);

I should've explained that this is to prevent the kernel from spitting
out messages like:

[ 7461.925685] usb 2-4: usbfs: process 11303 (sigrok-cli) did not claim
+interface 0 before use


Sean