no /dev/ttyUSB0 - how can I add this?

English Hardware
21

There is no return from that command.

However, I do get a return on the following, which does not show a matching productID

#sudo modinfo pl2303 | grep 067B
alias:          usb:v067Bp2304d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v067BpE1F1d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v067Bp0307d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v067Bp331Ad*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v067Bp0609d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v067Bp0612d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v067Bp0611d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v067BpAAA0d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v067BpAAA8d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v067BpAAA2d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v067Bp1234d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v067Bp04BBd*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v067Bp2303d*dc*dsc*dp*ic*isc*ip*in*
#

And I suppose that clearly explains why the recommendation is to remove the existing ps2303.ko and replace it with a new one I must compile.
The problem is trying to compile a new one fails (secure boot restriction??)

22

FWIW I’m using openSUSE Leap 15.2 with the stable kernel (currently 5.12.1-1), and I get

modinfo pl2303|grep 23A3
alias:          usb:v067Bp23A3d*dc*dsc*dp*ic*isc*ip*in*

So try that.

23

Nice. So I need to add a repository and go from there?

24

Correct.

25

Thank you, I appreciate this info. Apparently 15.12.1-1 is already history and it is now at 15.12.4

I guess I’ll have to go with that since I have not located 15.12.1 anywhere else.

26

Yes, just subscribe to the stable kernel repo, and upgrade kernel accordingly.

27

Updating to the 15.12.x kernel worked very well.

I still don’t have /dev/ttyUSB0 but when I attach the cable to the device it creates a symbolic link ttyUSB0.
This works for me both in putty and in the terminal using screen.

Thanks to all who walked me through this problem and showed me some commands I was not aware of.
The bottomline was the lack of the correct driver in the Leap15 kernel and my inability to compile the driver and add it.

28

Hi
I would raise a bug report against the kernel esp for Leap 15.3 and get the module backported so it works with your newer device…

Then you (and others) can benefit with support in the standard kernel :wink:

openSUSE:Submitting bug reports - openSUSE

29

Bug 1186320