FX3 Composite device (UVC + usb-uart) can not recognition in linux | Cypress Semiconductor
FX3 Composite device (UVC + usb-uart) can not recognition in linux
the composite device（UVC+usb-uart ----they are all use IADs） is work in windows，but when i use it in linux ,it just only one device can work.
dmesg | tail -20
[ 3742.954606] usb 2-1.1: New USB device found, idVendor=04b4, idProduct=00f8
[ 3742.954611] usb 2-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 3742.954614] usb 2-1.1: Product: FX3
[ 3742.954616] usb 2-1.1: Manufacturer: Cypress
[ 3742.956050] uvcvideo: Found UVC 1.00 device FX3 (04b4:00f8)
[ 3742.957704] input: FX3 as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1:1.0/input/input16
[ 3742.957965] cdc_acm 2-1.1:1.2: This device cannot do calls on its own. It is not a modem.
[ 3742.957974] cdc_acm: probe of 2-1.1:1.2 failed with error -22
hope someone can help me to solve my doubt.
Many thanks in advance!