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From: Clemens Ladisch <clemens-P6GI/4k7KOmELgA04lAiVw@public.gmane.org>
To: Alan Stern <stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org>
Cc: "Oliver Neukum" <oneukum-l3A5Bk7waGM@public.gmane.org>,
	"Takashi Iwai" <tiwai-l3A5Bk7waGM@public.gmane.org>,
	"Jonathan Nieder"
	<jrnieder-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	"Steffen Müller"
	<steffen.mueller-Coi19p7x1OHFVwzeVveEFA@public.gmane.org>,
	alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org,
	"Olivier MATZ" <zer0-RqaWXwjnwG4BE+pwOMkbTQ@public.gmane.org>,
	linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	"David Banks" <amoebae-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	"Ralf Lang" <lang-shG/GajIFYqbacvFa/9K2g@public.gmane.org>
Subject: Re: [alsa-devel] [PATCH] usb: add USB_QUIRK_RESET_RESUME for M-Audio 49
Date: Mon, 26 Nov 2012 21:12:25 +0100	[thread overview]
Message-ID: <50B3CD29.2060505@ladisch.de> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1211261111130.2168-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>

Alan Stern wrote:
> On Mon, 26 Nov 2012, Oliver Neukum wrote:
>> On Monday 26 November 2012 14:43:13 Clemens Ladisch wrote:
>>> 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.
>
> In fact, as far as I know you _can_ use usb_autopm_get_interface() from
> within a probe routine.  Is there some problem with it I'm not aware of?

It returns -EACCES.

But _no_resume() appears to work just fine.


Regards,
Clemens
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  parent reply	other threads:[~2012-11-26 20:12 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
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 [this message]
2012-11-26 21:54                                       ` Alan Stern
2012-11-26 13:58                               ` Takashi Iwai

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