I am not able to configure the bca2000 under linux. Although I loaded the module "snd-usb-audio" the only card that comes seen is the intel motherboard integrated card. It is the first time that I use a audio usb interface. I have found, with google, various post on this topic but they have not cleared to me if is possible to use the bca2000 with linux. Someone is successful? thanks for whichever aid -- Lazzaro here some information on my system: bash-3.00# uname -a Linux tarallo-furioso 2.6.11.5 #9 SMP Wed May 18 17:28:44 CEST 2005 i686 unknown unknown GNU/Linux bash-3.00# lsmod (before load snd-usb-audio) Module Size Used by radeon 76800 1 drm 61844 2 radeon analog 11424 0 gameport 4736 1 analog rtc 11468 0 intel_agp 21148 1 snd_intel8x0 30528 0 snd_ac97_codec 76536 1 snd_intel8x0 snd_pcm 85252 2 snd_intel8x0,snd_ac97_codec snd_timer 22916 1 snd_pcm snd 50532 4 snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer snd_page_alloc 8836 2 snd_intel8x0,snd_pcm tuner 22564 0 saa7134 100564 0 video_buf 18564 1 saa7134 v4l2_common 5760 1 saa7134 v4l1_compat 14852 1 saa7134 ir_common 5124 1 saa7134 videodev 8704 1 saa7134 evdev 8576 0 agpgart 30256 2 drm,intel_agp bash-3.00# lsmod (after "modprobe snd-usb-audio") Module Size Used by snd_usb_audio 65600 0 snd_usb_lib 12672 1 snd_usb_audio snd_rawmidi 21664 1 snd_usb_lib snd_seq_device 8332 1 snd_rawmidi radeon 76800 1 drm 61844 2 radeon analog 11424 0 gameport 4736 1 analog rtc 11468 0 intel_agp 21148 1 snd_intel8x0 30528 0 snd_ac97_codec 76536 1 snd_intel8x0 snd_pcm 85252 3 snd_usb_audio,snd_intel8x0,snd_ac97_codec snd_timer 22916 1 snd_pcm snd 50532 8 snd_usb_audio,snd_usb_lib,snd_rawmidi,snd_seq_device,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer snd_page_alloc 8836 2 snd_intel8x0,snd_pcm tuner 22564 0 saa7134 100564 0 video_buf 18564 1 saa7134 v4l2_common 5760 1 saa7134 v4l1_compat 14852 1 saa7134 ir_common 5124 1 saa7134 videodev 8704 1 saa7134 evdev 8576 0 agpgart 30256 2 drm,intel_agp bash-3.00# cat /proc/asound/cards 0 [I82801BAICH2 ]: ICH - Intel 82801BA-ICH2 Intel 82801BA-ICH2 with CMI9761 at 0xec00, irq 17 bash-3.00# dmesg |grep usb (only the bca2000 is plugged-in) usbcore: registered new driver usbfs usbcore: registered new driver hub usb 1-4: new high speed USB device using ehci_hcd and address 2 drivers/usb/serial/usb-serial.c: USB Serial support registered for Generic usbcore: registered new driver usbserial_generic usbcore: registered new driver usbserial drivers/usb/serial/usb-serial.c: USB Serial Driver core v2.0 usbcore: registered new driver snd-usb-audio bash-3.00# lsusb Bus 004 Device 001: ID 0000:0000 Bus 003 Device 001: ID 0000:0000 Bus 002 Device 001: ID 0000:0000 Bus 001 Device 002: ID 1397:00bb Bus 001 Device 001: ID 0000:0000 bash-3.00# lsusb -v -s 001:002 Bus 001 Device 002: ID 1397:00bb Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 255 Vendor Specific Subclass bDeviceProtocol 255 Vendor Specific Protocol bMaxPacketSize0 64 idVendor 0x1397 idProduct 0x00bb bcdDevice 0.00 iManufacturer 0 iProduct 0 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 171 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 1 bNumEndpoints 6 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x88 EP 8 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 2 bNumEndpoints 6 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 bytes 64 once bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 bytes 64 once bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x88 EP 8 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 3 bNumEndpoints 6 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 bytes 64 once bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 bytes 64 once bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x88 EP 8 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 bytes 512 once bInterval 0