On 02/06/15 11:05, Alexey Sokolov wrote:
> ATOL FPrint fiscal printers require usb_clear_halt to be executed
> to work properly. Add quirk to fix the issue.
> 
> Signed-off-by: Alexey Sokolov <soko...@7pikes.com>
> ---
>  drivers/usb/class/cdc-acm.c | 9 +++++++++
>  drivers/usb/class/cdc-acm.h | 1 +
>  2 files changed, 10 insertions(+)
> 
> diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
> index 5c8f581..9d8a321 100644
> --- a/drivers/usb/class/cdc-acm.c
> +++ b/drivers/usb/class/cdc-acm.c
> @@ -1477,6 +1477,11 @@ skip_countries:
>               goto alloc_fail8;
>       }
>  
> +     if (quirks == CLEAR_HALT_CONDITIONS) {
> +             usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, 
> epread->bEndpointAddress));
> +             usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, 
> epwrite->bEndpointAddress));
> +     }
> +

Given quirks looks like a bitfield, it would be better if this is

        if (quirks & CLEAR_HALT_CONDITIONS) {


-- 
Ben Dooks                               http://www.codethink.co.uk/
Senior Engineer                         Codethink - Providing Genius
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