Waiting complete insertion of usb device

Waiting complete insertion of usb device

[Anthony Viallard]

Hello list,

I'm working on a 3G USB dongle which offer tty to communicate with him.

I need to start a service when this dongle is plugged to my system. This 
service uses tty (there are 4 tty (diag, cmd, data and for voice). So, i 
need to waiting the complete insertion of the USB dongle before 
launching it.

For now, i'm waiting the last tty (ttyUSB3) event, sleep 1 second and 
launch the service. But i think my solution is pretty crap.

Is there a better way to do this ?

(I'm working with old architecture of hotplug: /bin/hotplug script which 
launch /etc/hotplug.d/${SUBSYSTEM}/ scripts...)

Anthony.

Re: Waiting complete insertion of usb device

[Greg KH]

On Tue, Sep 15, 2009 at 11:13:43AM +0200, Anthony Viallard wrote:
> Hello list,
> 
> I'm working on a 3G USB dongle which offer tty to communicate with him.
> 
> I need to start a service when this dongle is plugged to my system. This 
> service uses tty (there are 4 tty (diag, cmd, data and for voice). So, i 
> need to waiting the complete insertion of the USB dongle before 
> launching it.
> 
> For now, i'm waiting the last tty (ttyUSB3) event, sleep 1 second and 
> launch the service. But i think my solution is pretty crap.
> 
> Is there a better way to do this ?
> 
> (I'm working with old architecture of hotplug: /bin/hotplug script which 
> launch /etc/hotplug.d/${SUBSYSTEM}/ scripts...)

That architecture is obsolete, and is not shipped, or supported by any
distro or developer, so you are on your own if you want to rely and use
it.

good luck,

greg k-h

Re: Waiting complete insertion of usb device

[Anthony Viallard]

Le 15/09/2009 17:28, Greg KH a écrit :
> On Tue, Sep 15, 2009 at 11:13:43AM +0200, Anthony Viallard wrote:
>
>> Hello list,
>>
>> I'm working on a 3G USB dongle which offer tty to communicate with him.
>>
>> I need to start a service when this dongle is plugged to my system. This
>> service uses tty (there are 4 tty (diag, cmd, data and for voice). So, i
>> need to waiting the complete insertion of the USB dongle before
>> launching it.
>>
>> For now, i'm waiting the last tty (ttyUSB3) event, sleep 1 second and
>> launch the service. But i think my solution is pretty crap.
>>
>> Is there a better way to do this ?
>>
>> (I'm working with old architecture of hotplug: /bin/hotplug script which
>> launch /etc/hotplug.d/${SUBSYSTEM}/ scripts...)
>>
> That architecture is obsolete, and is not shipped, or supported by any
> distro or developer, so you are on your own if you want to rely and use
> it.
>
>
do you mean my problem will be solved if i use udev ?

Re: Waiting complete insertion of usb device

[Greg KH]

On Wed, Sep 16, 2009 at 09:38:56AM +0200, Anthony Viallard wrote:
> Le 15/09/2009 17:28, Greg KH a écrit :
> > On Tue, Sep 15, 2009 at 11:13:43AM +0200, Anthony Viallard wrote:
> >
> >> Hello list,
> >>
> >> I'm working on a 3G USB dongle which offer tty to communicate with him.
> >>
> >> I need to start a service when this dongle is plugged to my system. This
> >> service uses tty (there are 4 tty (diag, cmd, data and for voice). So, i
> >> need to waiting the complete insertion of the USB dongle before
> >> launching it.
> >>
> >> For now, i'm waiting the last tty (ttyUSB3) event, sleep 1 second and
> >> launch the service. But i think my solution is pretty crap.
> >>
> >> Is there a better way to do this ?
> >>
> >> (I'm working with old architecture of hotplug: /bin/hotplug script which
> >> launch /etc/hotplug.d/${SUBSYSTEM}/ scripts...)
> >>
> > That architecture is obsolete, and is not shipped, or supported by any
> > distro or developer, so you are on your own if you want to rely and use
> > it.
> >
> >
> do you mean my problem will be solved if i use udev ?

It will make things easier, yes.