From: Oliver Neukum <oliver@neukum.org>
To: Dan Williams <dcbw@redhat.com>
Cc: Ming Lei <tom.leiming@gmail.com>,
Elina Pasheva <epasheva@sierrawireless.com>,
Network Development <netdev@vger.kernel.org>,
linux-usb <linux-usb@vger.kernel.org>,
Rory Filer <rfiler@sierrawireless.com>, Phil Sutter <phil@nwl.cc>
Subject: Re: [PATCH 1/2 v6 RESEND] usbnet: allow status interrupt URB to always be active
Date: Tue, 07 May 2013 17:49:13 +0200 [thread overview]
Message-ID: <3985234.qGD343syJt@linux-5eaq.site> (raw)
In-Reply-To: <1367875763.31762.9.camel@dcbw.foobar.com>
On Monday 06 May 2013 16:29:23 Dan Williams wrote:
> Some drivers (sierra_net) need the status interrupt URB
> active even when the device is closed, because they receive
> custom indications from firmware. Add functions to refcount
> the status interrupt URB submit/kill operation so that
> sub-drivers and the generic driver don't fight over whether
> the status interrupt URB is active or not.
>
> A sub-driver can call usbnet_status_start() at any time, but
> the URB is only submitted the first time the function is
> called. Likewise, when the sub-driver is done with the URB,
> it calls usbnet_status_stop() but the URB is only killed when
> all users have stopped it. The URB is still killed and
> re-submitted for suspend/resume, as before, with the same
> refcount it had at suspend.
>
> Signed-off-by: Dan Williams <dcbw@redhat.com>
Acked-by: Oliver Neukum <oliver@neukum.org>
next prev parent reply other threads:[~2013-05-07 15:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-06 21:29 [PATCH 1/2 v6 RESEND] usbnet: allow status interrupt URB to always be active Dan Williams
2013-05-06 21:34 ` [PATCH 2/2 v6 RESEND] sierra_net: keep status interrupt URB active Dan Williams
[not found] ` <1367876096.31762.14.camel-wKZy7rqYPVb5EHUCmHmTqw@public.gmane.org>
2013-05-08 20:14 ` David Miller
2013-05-07 15:49 ` Oliver Neukum [this message]
[not found] ` <1367875763.31762.9.camel-wKZy7rqYPVb5EHUCmHmTqw@public.gmane.org>
2013-05-08 20:14 ` [PATCH 1/2 v6 RESEND] usbnet: allow status interrupt URB to always be active David Miller
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