/* common proc files to show the usb device info  */
static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
/* common proc files to show the usb device info  */
static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
{
	struct snd_usb_audio *chip = entry->private_data;
	if (!chip->shutdown)
		snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum);
}