From: TJ <tho...@gm...> - 2011-02-17 20:57:55
|
Here's my device descriptor output via terminal command: #lsusb -v ---Start device descriptor--- Bus 003 Device 002: ID 04d8:003f Microchip Technology, Inc. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x04d8 Microchip Technology, Inc. idProduct 0x003f bcdDevice 0.00 iManufacturer 1 Microchip Technology Inc. iProduct 2 Microchip Libusb Example Device iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 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 0x0040 1x 64 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Device Status: 0x0001 Self Powered -----End device descriptor--- I think I need to change endpoint addresses: // Setup Endpoints - The endpoints (2,4) are particular to the USB-connected device #define EP_COMMAND (2 | LIBUSB_ENDPOINT_OUT) // OUT of PC to USB-device //DEVICE_SPECIFIC #define EP_RESPONSE (4 | LIBUSB_ENDPOINT_IN ) // IN PC from USB-device //DEVICE_SPECIFIC Any insight? Thanks. |