From: Oliver Neukum <oneukum@suse.de>
To: Clemens Ladisch <clemens@ladisch.de>
Cc: "Takashi Iwai" <tiwai@suse.de>,
"Jonathan Nieder" <jrnieder@gmail.com>,
"Steffen Müller" <steffen.mueller@radio-frei.de>,
alsa-devel@alsa-project.org,
"Olivier MATZ" <zer0@droids-corp.org>,
linux-pm@vger.kernel.org, linux-usb@vger.kernel.org,
stable@vger.kernel.org, "David Banks" <amoebae@gmail.com>,
"Ralf Lang" <lang@b1-systems.de>
Subject: Re: [alsa-devel] [PATCH] usb: add USB_QUIRK_RESET_RESUME for M-Audio 49
Date: Mon, 26 Nov 2012 14:54:28 +0100 [thread overview]
Message-ID: <9473152.Oq5ztpgF62@linux-lqwf.site> (raw)
In-Reply-To: <50B371F1.70508@ladisch.de>
On Monday 26 November 2012 14:43:13 Clemens Ladisch wrote:
> > If it has to be running, the easiest fix would be the patch like
> > below. This will turn off the autopm essentially, but better than
> > breakage.
> >
> > @@ -2074,6 +2077,8 @@ static void snd_usbmidi_input_start_ep(struct snd_usb_midi_in_endpoint* ep)
> >
> > + ep->autopm_reference =
> > + usb_autopm_get_interface(ep->umidi->iface) >= 0;
>
> usb_autopm_get_interface() cannot be called from the USB probe callback.
You can use usb_autopm_get_interface_no_resume()
During probe() the device is known to not be suspended.
Regards
Oliver
next prev parent reply other threads:[~2012-11-26 13:54 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4FA2D481.4070304@droids-corp.org>
[not found] ` <4FA2DB9D.1040303@droids-corp.org>
[not found] ` <20120604110608.GG8248@droids-corp.org>
[not found] ` <20120605232432.GE3619@burratino>
[not found] ` <4FD06563.7050605@droids-corp.org>
[not found] ` <20121125094110.GA21387@elie.Belkin>
[not found] ` <50B2815E.2090105@droids-corp.org>
2012-11-25 21:21 ` [PATCH] usb: add USB_QUIRK_RESET_RESUME for M-Audio 49 Jonathan Nieder
[not found] ` <20121125212100.GE24024-fcEM2ccDkbL2nhBuCrrZHw@public.gmane.org>
2012-11-25 22:01 ` [alsa-devel] " Clemens Ladisch
[not found] ` <50B29537.7060007-P6GI/4k7KOmELgA04lAiVw@public.gmane.org>
2012-11-26 9:35 ` Takashi Iwai
2012-11-26 12:35 ` Clemens Ladisch
2012-11-26 13:04 ` Takashi Iwai
[not found] ` <s5hwqx8h5w1.wl%tiwai-l3A5Bk7waGM@public.gmane.org>
2012-11-26 13:43 ` Clemens Ladisch
2012-11-26 13:54 ` Oliver Neukum [this message]
2012-11-26 16:12 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.1211261111130.2168-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
2012-11-26 20:12 ` Clemens Ladisch
2012-11-26 21:54 ` Alan Stern
2012-11-26 13:58 ` Takashi Iwai
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