Re: snd-usb-audio help

Re: snd-usb-audio help

[Takashi Iwai]

At Thu, 13 Feb 2003 20:54:22 +0100,
nitic wrote:
> 
> hello takashi iwai,
> 
> im sorry i've got to directly ask you for help, but i think i tried nearly everything i find on google or alsa-docs or several usb-related sites,
> and nothing helped....so maybe you could have a look at my problem, please ?
> 
> i just cant figure out, why my usb-headset isnt working.. or well, i can, but i dont understand why this error occurs..
> my other soundcard works fine.
> 
> i've read of people who got plantronics headsets working.. dsp500-model, but i dont think the usb-part differs a lot, its mainly speaker and mic stuff, i think.
> sadly they didnt explain how they managed to do it....

can you send me the output of "lsusb -v" of the device?
also please show the content of /proc/asound/card1/stream*, too.


Takashi


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Re: snd-usb-audio help

[Takashi Iwai]

[-- Attachment #1: Type: text/plain, Size: 210 bytes --]

At Fri, 14 Feb 2003 18:29:15 +0100,
nitic wrote:
> 
> hello takashi,
> 
> thanks for the quick response.i've attached the wished files :)

could you try the attached patch?
(it's to the cvs version.)


Takashi

[-- Attachment #2: usb-platonic-fix.dif --]
[-- Type: application/octet-stream, Size: 1462 bytes --]

Index: alsa-kernel/usb/usbaudio.c
===================================================================
RCS file: /suse/tiwai/cvs/alsa/alsa-kernel/usb/usbaudio.c,v
retrieving revision 1.46
diff -u -r1.46 usbaudio.c
--- alsa-kernel/usb/usbaudio.c	14 Feb 2003 17:36:00 -0000	1.46
+++ alsa-kernel/usb/usbaudio.c	14 Feb 2003 17:48:17 -0000
@@ -1051,7 +1051,7 @@
 	}
 
 	/* create a data pipe */
-	ep = get_endpoint(alts, 0)->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+	ep = fmt->endpoint & USB_ENDPOINT_NUMBER_MASK;
 	if (is_playback)
 		subs->datapipe = usb_sndisocpipe(dev, ep);
 	else
@@ -1062,9 +1062,16 @@
 	subs->fill_max = 0;
 
 	/* we need a sync pipe in async OUT or adaptive IN mode */
-	attr = get_endpoint(alts, 0)->bmAttributes & EP_ATTR_MASK;
+	attr = fmt->ep_attr & EP_ATTR_MASK;
 	if ((is_playback && attr == EP_ATTR_ASYNC) ||
 	    (! is_playback && attr == EP_ATTR_ADAPTIVE)) {
+		/*
+		 * QUIRK: plantronics headphone has adaptive-in
+		 * although it's really not...
+		 */
+		if (dev->descriptor.idVendor == 0x047f &&
+		    dev->descriptor.idProduct == 0x0ca1)
+			goto _ok;
 		/* check endpoint */
 		if (altsd->bNumEndpoints < 2 ||
 		    get_endpoint(alts, 1)->bmAttributes != 0x01 ||
@@ -1088,6 +1095,7 @@
 		subs->syncinterval = get_endpoint(alts, 1)->bRefresh;
 	}
 
+ _ok:
 	if ((err = init_usb_pitch(dev, subs->interface, alts, fmt)) < 0 ||
 	    (err = init_usb_sample_rate(dev, subs->interface, alts, fmt,
 					runtime->rate)) < 0)