> Please, check your descriptors. If you are in Linux, please post the
> output of lsusb -vv for you device, or, if you are in Windows, check
> the ouput of test-libusb-win32 app.
Ok what I see that there exist no endpoint. Does that make sense? How
does the communication work in that case?
Bus 002 Device 002: ID 09db:00f9 Measurement Computing Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 255 Vendor Specific Subclass
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x09db Measurement Computing Corp.
idProduct 0x00f9
bcdDevice 1.01
iManufacturer 1 Measurement Computing
iProduct 2 USB-2001-TC
iSerial 3 015C5BB4
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 18
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 0
iInterface 0
Device Status: 0x0000
(Bus Powered)
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