i have a pair of old Altec Lansing speakers that have a USB cable which allows
you to control the Functional Unit (volume/mute/bass/etc...). i'm trying to
add it to usbquirks.h but cant seem to invoke the necessary voodoo.
/*
* Altec Lansing: Feature Unit for speakers
*/
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE |
USB_DEVICE_ID_MATCH_INT_CLASS |
USB_DEVICE_ID_MATCH_INT_SUBCLASS,
.idVendor = 0x04d2,
.idProduct = 0xff05,
.bInterfaceClass = USB_CLASS_AUDIO,
.bInterfaceSubClass = USB_SUBCLASS_AUDIO_CONTROL
},
but upon loading the freshly compiled module, i'm informed:
unknown device speed 1
the usbaudio code doesnt seem to accept USB_SPEED_LOW ?
here's the full dmesg output:
usb usb1: usb resume
usb usb1: finish resume
hub 1-0:1.0: hub_resume
ehci_hcd 0000:00:02.1: resume root hub
hub 1-0:1.0: state 7 ports 10 chg 0000 evt 0000
ehci_hcd 0000:00:02.1: GetStatus port 1 status 001403 POWER sig=k CSC CONNECT
hub 1-0:1.0: port 1, status 0501, change 0001, 480 Mb/s
hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x501
ehci_hcd 0000:00:02.1: port 1 low speed --> companion
usb usb2: usb resume
usb usb2: finish resume
hub 2-0:1.0: hub_resume
ohci_hcd 0000:00:02.0: wakeup root hub
ehci_hcd 0000:00:02.1: GetStatus port 1 status 003402 POWER OWNER sig=k CSC
hub 1-0:1.0: state 7 ports 10 chg 0000 evt 0002
hub 2-0:1.0: state 7 ports 10 chg 0000 evt 0000
ohci_hcd 0000:00:02.0: GetStatus roothub.portstatus [0] = 0x00010301 CSC LSDA
PPS CCS
hub 2-0:1.0: port 1, status 0301, change 0001, 1.5 Mb/s
hub 2-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x301
ohci_hcd 0000:00:02.0: GetStatus roothub.portstatus [0] = 0x00100303 PRSC LSDA
PPS PES CCS
usb 2-1: new low speed USB device using ohci_hcd and address 10
ohci_hcd 0000:00:02.0: GetStatus roothub.portstatus [0] = 0x00100303 PRSC LSDA
PPS PES CCS
usb 2-1: default language 0x0409
usb 2-1: new device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-1: Product: ASC495 Speakers
usb 2-1: Manufacturer: ALTEC LANSING Multimedia
usb 2-1: uevent
usb 2-1: usb_probe_device
usb 2-1: configuration #1 chosen from 1 choice
usb 2-1: adding 2-1:1.0 (config #1, interface 0)
usb 2-1:1.0: uevent
usb 2-1:1.0: uevent
usbserial_generic 2-1:1.0: usb_probe_interface
usbserial_generic 2-1:1.0: usb_probe_interface - got id
snd-usb-audio 2-1:1.0: usb_probe_interface
snd-usb-audio 2-1:1.0: usb_probe_interface - got id
unknown device speed 1
snd-usb-audio: probe of 2-1:1.0 failed with error -5
drivers/usb/core/inode.c: creating file '010'
hub 2-0:1.0: state 7 ports 10 chg 0000 evt 0002
hub 1-0:1.0: hub_suspend
ehci_hcd 0000:00:02.1: suspend root hub
usb usb1: usb auto-suspend
usb 2-1: usb auto-suspend
and here's the `lsusb -v` output:
Bus 002 Device 010: ID 04d2:ff05 Altec Lansing Technologies ADA-305 Speakers
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x04d2 Altec Lansing Technologies
idProduct 0xff05 ADA-305 Speakers
bcdDevice 0.00
iManufacturer 1 ALTEC LANSING Multimedia
iProduct 2 ASC495 Speakers
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x40
(Missing must-be-set bit!)
Self Powered
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 1x 2 bytes
bInterval 32
Device Status: 0x0001
Self Powered
-mike
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