Hi,
I have a set of Altec Lansing ADA305 Speakers that can use USB to control volume, base, treble, etc. Now, I noticed that the USB Audio Class specification is capable of handling these parameters. However, the usb audio module does not claim these speakers. I tried kernels 2.4.20 (gentoo) and a vanilla 2.6.0-test9.
The device below is neither an audio device nor a HID device. Notice how both "Device Class" and "Interface Class" lines list value 0xff, which is a vendor-specific class. You'd need to find out what protocol they use, and write some kind of device driver that understands it.
- Dave
ADA305 Speakers Manufacturer: ALTEC LANSING Multimedia Speed: 1.5Mb/s (low) USB Version: 1.00 Device Class: ff(vend.) Device Subclass: 00 Device Protocol: 00 Maximum Default Endpoint Size: 8 Number of Configurations: 1 Vendor Id: 04d2 Product Id: 0305 Revision Number: 0.00
Config Number: 1 Number of Interfaces: 1 Attributes: 40 MaxPower Needed: 0mA
Interface Number: 0 Name: (none) Alternate Number: 0 Class: ff(vend.) Sub Class: 1 Protocol: 0 Number of Endpoints: 1
Endpoint Address: 81 Direction: in Attribute: 3 Type: Int. Max Packet Size: 2 Interval: 32ms
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