Re: Alsa Support for Korg Pandora Mini, Vox ToneLab ST

[Daniel Mack <zonque@gmail.com>]

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On Sun, May 15, 2011 at 10:43 PM, Daniel Mack <zonque@gmail.com> wrote:
> On Sun, May 15, 2011 at 7:54 PM, Grant Diffey <gdiffey@gmail.com> wrote:
>> So I reverted  7b6717e and... Nope. still no midi ports.
>>
>>
>> Kernel messages are:
>>
>> [  131.484053] usb 3-1: new high speed USB device using ehci_hcd and address
>> 3
>> [  131.617753] usb 3-1: config 1 interface 3 altsetting 0 bulk endpoint 0x7
>> has invalid maxpacket 8
>> [  131.617760] usb 3-1: config 1 interface 3 altsetting 0 bulk endpoint 0x87
>> has invalid maxpacket 8
>> [  131.618750] usb 3-1: New USB device found, idVendor=0763, idProduct=2080
>> [  131.618754] usb 3-1: New USB device strings: Mfr=1, Product=2,
>> SerialNumber=0
>> [  131.618756] usb 3-1: Product: Fast Track Ultra
>> [  131.618758] usb 3-1: Manufacturer: M-Audio
>> [  132.767312] usbcore: registered new interface driver snd-usb-audio
>>
>> And amidi -l reports
>>
>> nevyn@cetacea:~/linux$ amidi -l

Attached is a patch that adds some debug output. If you could apply
that and report what the kernel logs during the probe of the device,
that would be appreciated.


Thanks,
Daniel

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diff --git a/sound/usb/card.c b/sound/usb/card.c
index a90662a..1a5b620 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -141,6 +141,8 @@ static int snd_usb_create_stream(struct snd_usb_audio *chip, int ctrlif, int int
 	struct usb_interface_descriptor *altsd;
 	struct usb_interface *iface = usb_ifnum_to_if(dev, interface);
 
+printk(KERN_ERR "%s() interface %d\n", __func__, interface);
+
 	if (!iface) {
 		snd_printk(KERN_ERR "%d:%u:%d : does not exist\n",
 			   dev->devnum, ctrlif, interface);
@@ -148,16 +150,18 @@ static int snd_usb_create_stream(struct snd_usb_audio *chip, int ctrlif, int int
 	}
 
 	if (usb_interface_claimed(iface)) {
-		snd_printdd(KERN_INFO "%d:%d:%d: skipping, already claimed\n",
+		snd_printk(KERN_ERR "%d:%d:%d: skipping, already claimed\n",
 						dev->devnum, ctrlif, interface);
 		return -EINVAL;
 	}
 
 	alts = &iface->altsetting[0];
 	altsd = get_iface_desc(alts);
+printk(KERN_ERR "%s() .. bInterfaceClass %d bInterfaceSubClass %d\n", __func__, altsd->bInterfaceClass, altsd->bInterfaceSubClass);
 	if ((altsd->bInterfaceClass == USB_CLASS_AUDIO ||
 	     altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC) &&
 	    altsd->bInterfaceSubClass == USB_SUBCLASS_MIDISTREAMING) {
+printk(KERN_ERR "%s(): creating MIDI interface\n", __func__);
 		int err = snd_usbmidi_create(chip->card, iface,
 					     &chip->midi_list, NULL);
 		if (err < 0) {
@@ -236,6 +240,7 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
 			return -EINVAL;
 		}
 
+printk(KERN_ERR "%s() .. bInCollection %d\n", __func__, h1->bInCollection);
 		for (i = 0; i < h1->bInCollection; i++)
 			snd_usb_create_stream(chip, ctrlif, h1->baInterfaceNr[i]);
 

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