0

I have a raspberrypi 3. If I put a usb serial rfxcom device in the USB port I get a ttyusb0 serial device with ftdi drivers, but I have another USB stick with serial interface easywave which does nothing, on a windows computer it is a serial device. How can I let my pi 3 see it as a serial device?

i am running

Linux JillesPI02 4.9.59-v7+ #1047 SMP Sun Oct 29 12:19:23 GMT 2017 armv7l GNU/Linux

Distributor ID: Raspbian Description: Raspbian GNU/Linux 9.3 (stretch) Release: 9.3 Codename: stretch

[ 1221.371631] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1221.371640] usb 1-1.2: Product: RFXtrx433
[ 1221.371647] usb 1-1.2: Manufacturer: RFXCOM
[ 1221.371655] usb 1-1.2: SerialNumber: A11SERXI
[ 1221.407993] usbcore: registered new interface driver usbserial
[ 1221.408038] usbcore: registered new interface driver usbserial_generic
[ 1221.408080] usbserial: USB Serial support registered for generic
[ 1221.416081] usbcore: registered new interface driver ftdi_sio
[ 1221.416155] usbserial: USB Serial support registered for FTDI USB Serial Device
[ 1221.416355] ftdi_sio 1-1.2:1.0: FTDI USB Serial Device converter detected
[ 1221.416625] usb 1-1.2: Detected FT232RL
[ 1221.418252] usb 1-1.2: FTDI USB Serial Device converter now attached to ttyUSB0
[ 1240.632004] usb 1-1.2: USB disconnect, device number 6
[ 1240.632602] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[ 1240.632677] ftdi_sio 1-1.2:1.0: device disconnected
[ 1243.486924] usb 1-1.2: new full-speed USB device number 7 using dwc_otg
[ 1243.624734] usb 1-1.2: New USB device found, idVendor=155a, idProduct=1006
[ 1243.624749] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1243.624758] usb 1-1.2: Product: USB Transceiver Easywave

i know the usb stick Easywave from Eldat should use the

https://github.com/raspberrypi/linux/blob/783daf505c2d8ecf26eeb4b4cd657f4b48072540/drivers/usb/serial/cp210x.c

but the descripters for the usb easywave device aint formulated on the silicon labs driver

i added them in a pull request for the linux distribution , it is a bridge to far for me to update the driver itself in my pi 3 ,

https://github.com/nattlip/linux/commit/3f153b96bf2315b10a02b5ce486ae9bc447af8b3

a workaround is mentioned on stackoverflow

https://stackoverflow.com/questions/38330155/updating-product-vendor-id-on-raspberry-pi-cp210x

3
  • 1
    You have to reformat the question, its unreadable, and "pi 3", please spell it out, it will improve your chanses to get help!
    – MatsK
    Feb 7, 2018 at 7:40
  • If you told us the model and log of the other device instead of that of the one that works for you, we could maybe help.
    – Janka
    Feb 7, 2018 at 16:03
  • Does this help? wiki.fhem.de/wiki/RFXtrx
    – Janka
    Feb 7, 2018 at 16:07

2 Answers 2

1

i found the right answer thanks to

https://stackoverflow.com/questions/38330155/updating-product-vendor-id-on-raspberry-pi-cp210x

if you know the right descriptors of the device id and vendor id you can add them simply on your pi with

§ sudo modprobe cp210x
§ sudo sh -c 'echo 155a 100D > /sys/bus/usb-serial/drivers/cp210x/new_id'
§ sudo sh -c 'echo 155a 1013 > /sys/bus/usb-serial/drivers/cp210x/new_id'
§ sudo sh -c 'echo 155a 1006 > /sys/bus/usb-serial/drivers/cp210x/new_id'

update 29-04-2018

the rx09 usb stick with id 1006 is now in the offical linux kernel 4.9 , so if you update and upgrade your pi2 it should work without modprobe.

0

Try:

sudo modprobe ftdi_sio
sudo modprobe usbserial

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.