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From: Clemens Ladisch <clemens@ladisch.de>
To: Felipe Balbi <balbi@ti.com>
Cc: Takashi Iwai <tiwai@suse.de>,
	alsa-devel@alsa-project.org,
	Linux USB Mailing List <linux-usb@vger.kernel.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] sound: usb: mixer: increase control transfer timeout
Date: Mon, 29 Aug 2011 13:58:31 +0200	[thread overview]
Message-ID: <4E5B7EE7.6070103@ladisch.de> (raw)
In-Reply-To: <1314616226-15942-1-git-send-email-balbi@ti.com>

Felipe Balbi wrote:
> 100ms might not be enough for slower devices. Increasing
> timeout to 1000ms doesn't seem like overkill.
> 
> --- a/sound/usb/mixer.c
> +++ b/sound/usb/mixer.c
> @@ -296,7 +296,7 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int v
>  		if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request,
>  				    USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
>  				    validx, snd_usb_ctrl_intf(chip) | (cval->id << 8),
> -				    buf, val_len, 100) >= val_len) {
> +				    buf, val_len, 1000) >= val_len) {

If the timeout for reading values needs to be increased, writing (in
snd_usb_mixer_set_ctl_value) probably needs some attention too.


Regards,
Clemens

  parent reply	other threads:[~2011-08-29 11:58 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-29 11:10 [PATCH] sound: usb: mixer: increase control transfer timeout Felipe Balbi
     [not found] ` <1314616226-15942-1-git-send-email-balbi-l0cyMroinI0@public.gmane.org>
2011-08-29 11:16   ` Sebastian Andrzej Siewior
     [not found]     ` <20110829111607.GB21556-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
2011-08-29 11:19       ` Felipe Balbi
2011-08-29 11:58 ` Clemens Ladisch [this message]
     [not found]   ` <4E5B7EE7.6070103-P6GI/4k7KOmELgA04lAiVw@public.gmane.org>
2011-08-29 12:23     ` Felipe Balbi
2011-08-29 12:31       ` [PATCH v2] " Felipe Balbi
2011-08-29 12:37         ` Jassi Brar
     [not found]           ` <CABb+yY15qrszsbJSGGFra7mrVRO_oQPUhNT=U7TNpyoYikABPw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-08-29 13:00             ` Felipe Balbi
2011-08-29 13:34               ` Jassi Brar
2011-08-29 14:05           ` Clemens Ladisch
     [not found]             ` <4E5B9CB0.4090708-P6GI/4k7KOmELgA04lAiVw@public.gmane.org>
2011-08-29 14:22               ` Jassi Brar
2011-09-12 10:57                 ` Takashi Iwai
2011-09-16  6:25 ` [PATCH] " Takashi Iwai
2011-09-26  8:49   ` Felipe Balbi
2011-09-27  6:52     ` Clemens Ladisch

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