Sorry, Patch wrong (was: patch "USB: serial: ftdi_sio: add Id for Physik Instrumente E-870" added to usb-testing)
Subsystems (2)
Quoted 8 lines · Martin
Dear Greg, dear Johan, dear list,
I'm very sorry I was a bit quick in sending you a patch for the PI E-870 device, because it's actually wrong. Everything seemed to work fine, until I realized that once in a while two characters were missing. Checking dmesg I realized error messages had piled up. It turns out, the device is not compatible with the
ftdi_siodriver in the end. I hope this can be undone...
No worries, I just sent a revert patch to Greg.
Quoted 6 lines
The device, however works with a usb-serial-simple driver. Unfortunately, it is not as easy as for the E-870 to supply a patch, as usb-serial-simple does not just contain a list of VID and PIDs, but actually creates a new entry somewhere in
/sys/busfor each vendor. I would like to send in patch for this later, but this time properly tested...
Try first to determine what chip this really is (e.g. by opening the device). Chances are there's already a driver for it. Full "lsusb -v" might also give some clues.
Thanks,
Johan