linux-kernel - Re: [PATCH] sound: Add support for Creative BT-D1 via usb sound quirks

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Date:	Thu, 03 Jan 2013 10:58:03 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Alexander Schremmer <alex@...xanderweb.de>
Cc:	Jaroslav Kysela <perex@...ex.cz>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sound: Add support for Creative BT-D1 via usb sound quirks

At Sat, 29 Dec 2012 14:26:25 +0100,
Alexander Schremmer wrote:
> 
> From: Alexander Schremmer <alex@...xanderweb.de>
> 
> Support the Creative BT-D1 Bluetooth USB audio device. Before this
> patch, Linux had trouble finding the correct USB descriptors and bailed
> out with these messages:
> 
>  no or invalid class specific endpoint descriptor
> 
> Now it still prints these messages on hotplug:
> 
>  snd-usb-audio: probe of ...:1.0 failed with error -5
>  snd-usb-audio: probe of ...:1.2 failed with error -5
>  snd-usb-audio: probe of ...:1.3 failed with error -5
> 
> But the device works correctly, including the HID support.
> 
> The patch is diff'ed against 3.8-rc1 but should apply to older kernels
> as well.
> 
> Signed-off-by: Alexander Schremmer <alex@...xanderweb.de>

Thanks for the patch.  The changes look OK, but could you fix trivial
coding issues reported by scripts/checkpatch.pl and resend?


Takashi

> 
> ---
> diff -uprN linux-3.8-rc1/sound/usb/quirks-table.h
> linux-3.8-rc1-mod/sound/usb/quirks-table.h
> --- linux-3.8-rc1/sound/usb/quirks-table.h      2012-12-22
> 02:19:00.000000000 +0100
> +++ linux-3.8-rc1-mod/sound/usb/quirks-table.h  2012-12-26
> 11:41:28.000000000 +0100
> @@ -50,6 +50,28 @@
>         }
>  },
> 
> +{
> +       /* Creative BT-D1 */
> +       USB_DEVICE(0x041e, 0x0005),
> +       .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
> +               .ifnum = 1,
> +               .type = QUIRK_AUDIO_FIXED_ENDPOINT,
> +               .data = &(const struct audioformat) {
> +                       .formats = SNDRV_PCM_FMTBIT_S16_LE,
> +                       .channels = 2,
> +                       .iface = 1,
> +                       .altsetting = 1,
> +                       .altset_idx = 1,
> +                       .endpoint = 0x03,
> +                       .ep_attr = USB_ENDPOINT_XFER_ISOC,
> +                       .attributes = 0,
> +                       .rates = SNDRV_PCM_RATE_CONTINUOUS,
> +                       .rate_min = 48000,
> +                       .rate_max = 48000,
> +               }
> +       }
> +},
> +
>  /* Creative/Toshiba Multimedia Center SB-0500 */
>  {
>         USB_DEVICE(0x041e, 0x3048),
> 
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