On Thu, 2015-02-19 at 09:31 +0100, Roberto Bianchi wrote: > Wow! What a support! > > *************************************************************** > Bus 001 Device 005: ID 03eb:2ff7 Atmel Corp. > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 1.10 > bDeviceClass 0 (Defined at Interface level) > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 32 > idVendor 0x03eb Atmel Corp. > idProduct 0x2ff7 > bcdDevice 0.00 > iManufacturer 0 > iProduct 1 Arduino USB-Serial DFU > iSerial 0 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 27 > bNumInterfaces 1 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0x80 > (Bus Powered) > MaxPower 100mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 0 > bInterfaceClass 254 Application Specific Interface > bInterfaceSubClass 1 Device Firmware Update > bInterfaceProtocol 2 > iInterface 0 > Device Firmware Upgrade Interface Descriptor: > bLength 9 > bDescriptorType 33 > bmAttributes 3 > Will Not Detach > Manifestation Intolerant > Upload Supported > Download Supported > wDetachTimeout 0 milliseconds > wTransferSize 3072 bytes > bcdDFUVersion 1.00 > Device Status: 0x0001 > Self Powered > ******************************************************************* That is a DFU device. It cannot work with CDC-ACM. Did you mean to use it with CDC-ACM after uploading firmware? If so, I need the descriptor in that state. In the current state the device lacks endpoints. It cannot possibly work with CDC-ACM. Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
