Re: [Gumstix-users] USB-to-serial adapter

[Anch <mu...@ym...>]

HI John,
I had trouble making ti_usb working on gumstix-verdex. Had to put in a
couple of patches and a udev rule file. You might need something similar.
Also, can you make the device yourself and then try communicating?
Also, how did you compile and install the module?

Muktabh


jpw3 wrote:
> 
> (My apologies if you are receiving this in duplicate; the first time I
> sent this it didn't seem to go through)
> 
>  
> 
> Anyone have experience using a USB-to-serial device on the Gumstix Overo? 
> I've been beating my head trying to get one of these adapters to work
> (I've tried 2 FTDI devices and one Prolific device).  I plug the adapter
> into a powered USB hub (I have a USB Ethernet adapter also plugged into
> this USB hub, and that works fine - so I don't think the issue is with the
> USB hub).  I installed the ftdi driver (kernel-module-ftdi-sio).  However,
> in /dev, I don't have a device like "ttyUSB0" show up when the
> USB-to-serial adapter is plugged in.  When I boot the Overo, I see that
> the device is recognized:
> 
>  
> 
> usb 1-1.2: new full speed USB device using musb_hdrc and address 4
> 
> usb 1-1.2: configuration #1 chosen from 1 choice
> 
> usb 1-1.2: New USB device found, idVendor=0403, idProduct=6001
> 
> usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> 
> usb 1-1.2: Product: FT232R USB UART
> 
> usb 1-1.2: Manufacturer: FTDI
> 
> usb 1-1.2: SerialNumber: A70076KJ
> 
>  
> 
> And in /dev, I see some related devices:
> 
>  
> 
> crw-rw----   1 root root    254,  12 Jan  1  2000 usbdev1.4_ep00
> 
> crw-rw----   1 root root    254,  11 Jan  1  2000 usbdev1.4_ep02
> 
> crw-rw----   1 root root    254,  10 Jan  1  2000 usbdev1.4_ep81
> 
>  
> 
> However, I can't "cat" to any of these devices, and as I mentioned I don't
> see any device like /dev/ttyUSB show up.
> 
>  
> 
> Any help is very much appreciated!
> 
>  
> 
> Thanks,
> 
>  
> 
> John
> 
>  
> 
> John P. Wilson
> Engineer
> Erigo Technologies LLC
> 64 Main St./P.O. Box 899
> Enfield, NH 03748
> 
> P: 603.632.4156
> C: 603.252.2087
> F: 603.676.0162
> 
> www.erigo.com <http://www.erigo.com> 
> 
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