Re: usb serial confuddlement

On Mon, 2004-10-04 at 02:05, Sean McNeil wrote:
> On Sun, 2004-10-03 at 22:35, Randy Bush wrote:
> > > You need 'ubsa' module loaded or device 'ubsa' in you kernel
> > > configuration.
> > 
> > # kldstat
> > Id Refs Address    Size     Name
> >  1   18 0xc0400000 3a42f4   kernel
> >  2    1 0xc07a5000 6eb8     linprocfs.ko
> >  3    2 0xc07ac000 1fa44    linux.ko
> >  4    1 0xc07cc000 bc08     ipfw.ko
> >  5    1 0xc07d8000 5f84     snd_ich.ko
> >  6    2 0xc07de000 204fc    sound.ko
> >  7    1 0xc07ff000 5418     acpi_video.ko
> >  8   15 0xc0805000 5d6f4    acpi.ko
> >  9    1 0xc0863000 38e8     ubsa.ko
> > 10    2 0xc0867000 36c8     ucom.ko
> > 
> > 
> > ugen0: Belkin USB PDA Adapter Belkin Components, rev 1.10/1.02, addr 2
> > 
> > # ls /dev/u*
> > /dev/ugen0      /dev/ugen0.2    /dev/usb        /dev/usb1
> > /dev/ugen0.1    /dev/urandom_at_   /dev/usb0       /dev/usb2
> > 
> > 
> > so, still no device, and, of course, a crash some time after
> > usb device removal
> 
> Don't you also need to load uplcom.ko?  I do for my serial-usb
> converter.  I had to load it in the boot loader to have it actually
> work, though.  You will also find that the device name has changed.  It
> is no longer ucom0 but ttyU0.
> 
> Cheers,
> Sean
> 
uplcom is for Prolific serial dongle (at least theoretically). It does
not necessary mean that it is a wrong driver for the piece of hardware
in question, though ;)

First, proof that ubsa does indeed support some Belkin USB-to-serial
hardware.

sunny:RabbitsDen>dmesg | grep ucom
ucom0: Belkin Components USB-232 Adapter, rev 1.10/2.07, addr 5
ucom1: Prolific Technology PL2303 Serial adapter (ATEN/IOGEAR UC232A),
rev 1.10/2.02, addr 3

Next step would be to do usbdevs -v and see vendor/product values.

RabbitsDen# usbdevs -v | grep Belkin
  port 5 addr 5: full speed, power 100 mA, config 1, USB-232
Adapter(0x1203), Belkin Components(0x050d), rev 2.07

Vendors and products are listed in /usr/src/sys/dev/usb/usbdevs. If
yours is not there, you can add it, add pair to the ubsa_products array
in /usr/src/sys/dev/ubsa.c, recompile the ubsa module and keep your
fingers crossed. If it works, I am sure somebody would appreciate the
patch.

One thing, I have noticed about my USB devices, is that driver needs to
be loaded *before* device is plugged in.

And, as Sean rightfully pointed out USB serial devices are represented
by /dev/ttyUnn and /dev/cuaUnn pair in -current. I do not run 5.3, so I
could not speak to that.

HTH.
---
Alexandre "Sunny" Kovalenko.