On Thu, 6 Feb 2020, Enderborg, Peter wrote: > > Also, please post the output from "lsusb -v" for the StreamDeck. > > Bus 002 Device 008: ID 0fd9:0060 Elgato Systems GmbH Stream Deck > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 2.00 > bDeviceClass 0 > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 64 > idVendor 0x0fd9 Elgato Systems GmbH > idProduct 0x0060 > bcdDevice 1.00 > iManufacturer 1 > iProduct 2 > iSerial 3 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 0x0029 > bNumInterfaces 1 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0xe0 > Self Powered > Remote Wakeup > MaxPower 400mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 2 > bInterfaceClass 3 Human Interface Device > bInterfaceSubClass 0 > bInterfaceProtocol 0 > iInterface 0 > HID Device Descriptor: > bLength 9 > bDescriptorType 33 > bcdHID 1.11 > bCountryCode 0 Not supported > bNumDescriptors 1 > bDescriptorType 34 Report > wDescriptorLength 248 > Report Descriptors: > ** UNAVAILABLE ** I was hoping to see the report descriptors. This would produce the actual descriptors as sent by the device, not the kernel's interpretation or modification of the descriptors. I guess you have to unbind the device from the usbhid driver first in order for lsusb to get them. Can you do that? Alan Stern
