2.6 PCMCIA/USB question

2.6 PCMCIA/USB question

[Joerg Pommnitz]

Hello all,
I have a question that I could not figure out from other sources. I have
the following hardware: an integrated CardBus USB host adapter with a
connected USB serial device with three interfaces (normally
ttyUSB0...ttyUSB2). Now I want to use 3 of these devices (remember: they
are integrated, so I can't just plug the USB device onto the same host
adapter). I know device A is in CardBus slot 1, device B is in CardBus
slot 2 and so on. 

Now the question: How do I figure out which ttyUSBx belongs to which
device?

Thanks in advance
  Joerg


	

	
		
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Re: [Linux-usb-users] 2.6 PCMCIA/USB question

[Stephen J. Gowdy]

Trial and error (and hope they are always the same, which I think they
are with 2.6).

On Fri, 15 Apr 2005, Joerg Pommnitz wrote:

> Hello all,
> I have a question that I could not figure out from other sources. I have
> the following hardware: an integrated CardBus USB host adapter with a
> connected USB serial device with three interfaces (normally
> ttyUSB0...ttyUSB2). Now I want to use 3 of these devices (remember: they
> are integrated, so I can't just plug the USB device onto the same host
> adapter). I know device A is in CardBus slot 1, device B is in CardBus
> slot 2 and so on.
>
> Now the question: How do I figure out which ttyUSBx belongs to which
> device?
>
> Thanks in advance
>   Joerg
>
>
>
>
>
>
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Re: [Linux-usb-users] 2.6 PCMCIA/USB question

[Alan Stern]

On Fri, 15 Apr 2005, Joerg Pommnitz wrote:

> Hello all,
> I have a question that I could not figure out from other sources. I have
> the following hardware: an integrated CardBus USB host adapter with a
> connected USB serial device with three interfaces (normally
> ttyUSB0...ttyUSB2). Now I want to use 3 of these devices (remember: they
> are integrated, so I can't just plug the USB device onto the same host
> adapter). I know device A is in CardBus slot 1, device B is in CardBus
> slot 2 and so on. 
> 
> Now the question: How do I figure out which ttyUSBx belongs to which
> device?

You can look in the system log.  If you want, you can actually control 
which goes where by creating a udev configuration file.

Alan Stern

Re: [Linux-usb-users] 2.6 PCMCIA/USB question

[Joerg Pommnitz]

I had hoped that one can figure things out from /proc and /sys. SHould'n
there be a way to do this? And no, trial and error is not really an
option. The devices in question are WCDMA/UMTS mobile data cards. They
will differ only by the SIM card inserted by the user. The ICCID of the
SIM is unknown during development and I would like to avoid to many
configuration files.

Regards
  Joerg

--- Alan Stern <stern@rowland.harvard.edu> wrote:
> On Fri, 15 Apr 2005, Joerg Pommnitz wrote:
> 
> > Hello all,
> > I have a question that I could not figure out from other sources. I
> have
> > the following hardware: an integrated CardBus USB host adapter with a
> > connected USB serial device with three interfaces (normally
> > ttyUSB0...ttyUSB2). Now I want to use 3 of these devices (remember:
> they
> > are integrated, so I can't just plug the USB device onto the same host
> > adapter). I know device A is in CardBus slot 1, device B is in CardBus
> > slot 2 and so on. 
> > 
> > Now the question: How do I figure out which ttyUSBx belongs to which
> > device?
> 
> You can look in the system log.  If you want, you can actually control 
> which goes where by creating a udev configuration file.
> 
> Alan Stern
> 
> 


	
		
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