Re: [PATCH] cdc-acm: work around some broken devices

From: Alan Stern
Date: Wed Jul 01 2009 - 10:34:22 EST


On Wed, 1 Jul 2009, Arseniy Lartsev wrote:

> On Wednesday 01 July 2009 15:37:48 Oliver Neukum wrote:
> > Yes, exactly. Please add greg@xxxxxxxxx into CC, add a Signed-off-by line
> > and resend.
> ok
>
> Signed-off-by: Arseniy Lartsev <ars3n at yandex dot ru>
> --- a/drivers/usb/class/cdc-acm.c
> +++ b/drivers/usb/class/cdc-acm.c
> @@ -387,6 +387,7 @@ static void acm_rx_tasklet(unsigned long
> struct acm_ru *rcv;
> unsigned long flags;
> unsigned char throttled;
> + struct usb_host_endpoint *ep;
>
> dbg("Entering acm_rx_tasklet");
>
> @@ -462,11 +463,20 @@ urbs:
>
> rcv->buffer = buf;
>
> - usb_fill_bulk_urb(rcv->urb, acm->dev,
> - acm->rx_endpoint,
> - buf->base,
> - acm->readsize,
> - acm_read_bulk, rcv);
> + ep = (usb_pipein(acm->rx_endpoint) ? acm->dev->ep_in : acm->dev->ep_out)
> + [usb_pipeendpoint(acm->rx_endpoint)];

Isn't acm->rx_endpoint always going to be IN?

Alan Stern

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