<div class="gmail_quote">OK I did that. <div class="gmail_quote"><div class="im">On Wed, Apr 6, 2011 at 9:57 AM, <a href="mailto:akephart@akephart.org" target="_blank">akephart@akephart.org</a> <<a href="mailto:akephart@akephart.org" target="_blank">akephart@akephart.org</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">First, get the usb pid/vid values (XXXX:YYYY) for the target device with 'lsusb'. Then, list the full descriptor set with 'lsusb -v -d XXXX:YYYY'. In the listing, you'll see one or more interface descriptors, and each of those will have a value for bInterfaceClass. That value will tell you what usb class the particular interface supports, if any. There is also a device class indication in the device descriptor, but it will usually be set to a value that isn't directly useful (e.g. defined at interface level or miscellaneous device, that kind of thing). </blockquote><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> If it's a spec-compliant HWA, it'll have bInterfaceClass=E0h (wireless controller) and bInterfaceSubclass=02h (WUSB wire adapter). </blockquote></div><div> Those two values come out like this: </div> bInterfaceClass 224 WirelessbInterfaceSubClass 1 Radio Frequency The full code of what came out is like this: sudo lsusb Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 003: ID 0bda:0158 Realtek Semiconductor Corp. USB 2.0 multicard reader Bus 002 Device 002: ID 04f2:b070 Chicony Electronics Co., Ltd Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 006: ID 13cf:1200 Wisair Ltd. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub sudo lsusb -v -d 13cf:1200 Bus 001 Device 006: ID 13cf:1200 Wisair Ltd. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 239 Miscellaneous Device bDeviceSubClass 2 ? bDeviceProtocol 2 Wire Adapter Multifunction Peripheral bMaxPacketSize0 64 idVendor 0x13cf Wisair Ltd. idProduct 0x1200 bcdDevice 1.00 iManufacturer 2 iProduct 1 Wireless USB Dongle iSerial <a href="tel:3%20123456789" value="+13123456789" target="_blank">3 123456789</a> bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 109 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Security Descriptor: bLength 5 bDescriptorType 12 wTotalLength 10 bNumEncryptionTypes 1 Encryption Type Descriptor: bLength 5 bDescriptorType 14 bEncryptionType 2 UNSECURE bEncryptionValue 1 bAuthKeyIndex 0 ** UNRECOGNIZED: 08 30 1a 00 8c 00 00 01 ** UNRECOGNIZED: 06 31 5f 00 00 00 ** UNRECOGNIZED: 06 32 cc 00 00 00 ** UNRECOGNIZED: 06 34 6e 00 00 02 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 224 Wireless bInterfaceSubClass 2 Wireless USB Wire Adapter bInterfaceProtocol 1 Host Wire Adapter Control/Data Streaming iInterface 0 ** UNRECOGNIZED: 0e 21 00 01 05 00 19 00 10 02 0d 00 0a 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 2 Ultra WideBand Radio Control iInterface 0 Radio Control Interface Class Descriptor: bLength 4 bDescriptorType 35 bcdRCIVersion 1.00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 239 Miscellaneous Device bDeviceSubClass 2 ? bDeviceProtocol 2 Wire Adapter Multifunction Peripheral bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0000 (Bus Powered) <div class="im"> <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> It may also be defined as some kind of firmware download device (DFU or similar), and sit expectantly for an intermediate driver to download the firmware, which will then require the HWA driver. It may also be completely vendor-specific, in which case all bets are off. </blockquote></div><div> I am not sure if this indicates vendor specific or firmware download. Thanks again. Chris </div></div> </div> -- <a href="<a href="http://www.finalescape.com/home.php?refcode=AgKF5C">http://www.finalescape.com/home.php?refcode=AgKF5C</a>">Join FinalEscape!</a> For those of you who like text adventuring with a touch of cyberpunk.