Re: USB-to-serial adapter configuration

On Monday 18 May 2009, Saifi Khan wrote:
> On Mon, 18 May 2009, Ruben de Groot wrote:
> > On Mon, May 18, 2009 at 04:07:09PM +0000, Saifi Khan typed:
> > > Hi all:
> > >
> > > How does one configure settings for  USB-to-serial adapter in FreeBSD ?
> > >
> > > The one i have purchased is
> > > http://www.usbgear.com/computer_cable_details.cfm?sku=CHEAP-SERIAL&cats
> > >=199&catid=482%2C1303%2C199%2C461%2C106%2C1009%2C601
> > >
> > > On the Gentoo box, 'lsusb' displays it as:
> > >  Bus 002 Device 003: ID 067b:2303
> > >  Prolific Technology, Inc. PL2303 Serial Port
> >
> > Your adapter should be recognised by the uplcom driver. put
> > uplcom_load="YES" in loader.conf or load manually. Check dmesg for the
> > device name.
> > Also, I think cu is "good enough" ;)
> >
> > Ruben
>
> This is the error shown in 'dmesg' log
>
> ugen0.2: <Prolific Technology> at usbus0
> uplcom0: <Prolific Technology PL2303 Serial (ATEN/IOGEAR UC232A), class
> 0/0, rev 1.10/3.00, addr 2> on usbus0 uplcom0: init failed!
> device_attach: uplcom0 attach returned 6
> uplcom0: <Prolific Technology PL2303 Serial (ATEN/IOGEAR UC232A), class
> 0/0, rev 1.10/3.00, addr 2> on usbus0 uplcom0: init failed!
> device_attach: uplcom0 attach returned 6
>
> Scenarios:
>
>  1. kldstat -v | grep  uplcom shows
>       303 uhub/uplcom
>
>  2. uplcom_load="YES" in /boot/loader.conf
>       with a reboot
>
> In both the scenarios, 'dmesg' shows the same error.
>
> On re-attaching the device, the following error is shown.

Hi,

>
> usb2_alloc_device:1574: set address 2 failed (USB_ERR_STALLED, ignored)
> usb2_alloc_device:1612: getting device descriptor at addr 2 failed,
> USB_ERR_STALLED! ugen0.2: <> at usbus0 (disconnected)
> uhub_reattach_port:417: could not allocate new device!

Looks like the firmware crashed if it does not re-enumrate.

>
> Any suggestions on how i can get uplcom drive to work ?
>

Try looking up the USB-ID line for your device and modify the uplcom flags 
(TYPE_XXX) for your device so that it does not require init for example.

        /* TrendNet TU-S9 */
        {USB_UPL(USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303, 0x0400, 
0xFFFF, TYPE_PL2303X)},
        /* ST Lab USB-SERIAL-4 */
        {USB_UPL(USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303, 0x0300, 
0x03FF, TYPE_PL2303X)},
        /* IOGEAR/ATEN UC-232A (also ST Lab USB-SERIAL-1) */
        {USB_UPL(USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303, 0, 0x02FF, 
TYPE_PL2303)},

Use:

usbconfig dump_device_desc

To get the version number for your chip (See "0, 0x02FF" above) Make sure that 
the TYPE flag is correct.

Also see: /sys/dev/usb/serial/uplcom.c

Then:

make -C /sys/modules/usb/uplcom clean all install

kldunload uplcom
kldload uplcom

--HPS