Hi David,
I just tried unloading the ipaq kernel module (by executing `rmmod -v
ipaq`). It immediately caused the SUSE 9 machine to crash. So I guess
that's not an option I can use.
Also, I have discovered that with my current approach, even when ttyUSB0
remains after I terminate the ppp connection by killing the pppd process, I
cannot reuse ttyUSB0 until I physically unplug and replug the Windows CE
device (such that ttyUSB0 device node is removed and remade by the ipaq
kernel module). Without physically replugging the Windows CE device, the
next `pppd call script` cannot successfully establish a connection (it will
output "Connect script failed" after the TIMEOUT specified in the
/usr/sbin/chat script), even though the previous pppd process has really
terminated. Maybe I need to use /usr/sbin/chat to properly "hang up" the
device after the connection is terminated?
Best Regards,
Kal
On 29 November 2011 15:19, David Eriksson <twog...@users.sourceforge.net>wrote:
> Hi,
>
> Maybe you can try to unload the USB module and load it again?
>
> Cheers,
>
> David
>
>
> On Tue, Nov 29, 2011 at 06:10, Kal Sze <swordan...@gmail.com> wrote:
>
>> Thanks, Mark, for the reminder about connection stability. So far, I
>> don't seem to have any issue with that.
>>
>> I have another problem, however:
>>
>> As I said before, I'm only using pppd to dial a ppp connection to the
>> Windows CE device. Once I'm done using the ppp connection, my script
>> terminates the connection by using linux's `kill` command and giving it the
>> PID of the pppd process. The problem is that *sometimes*, after I kill the
>> pppd process, ttyUSB0 disappears, even though the Windows CE device is
>> still physically connected. If I physically disconnect and reconnect the
>> Windows CE device, linux's ipaq kernel module will re-create ttyUSB0. Would
>> somebody have an idea why ttyUSB0 disappears and whether I can prevent that
>> from happening? I would be happy if I could at least put something in my
>> script to cause the ipaq kernel module to re-create the ttyUSB0 without
>> requiring me to physically disconnect and reconnect the device.
>>
>> Best Regards,
>> Kal
>>
>> On 20 June 2011 04:05, Mark Ellis <m...@mpellis.org.uk> wrote:
>>
>>> On Fri, 2011-06-17 at 14:57 +0200, Kal Sze wrote:
>>> > On 17 June 2011 19:18, David Eriksson <twog...@users.sourceforge.net>
>>> wrote:
>>> > > Yes but when you dismiss the error, the connection closes, I think.
>>> > >
>>> > > \David
>>> >
>>> > Yes, that's my experience as well. But my end users will never see
>>> > that error box because there will be a full screen application that
>>> > always stays on top. All is still well.
>>> >
>>> > :D
>>> >
>>>
>>> Yes, that error probably occurs because there is no dccm on the other
>>> end responding to the keep-alive ping. Don't know how stable the link
>>> will be without a dccm.
>>>
>>> Mark
>>>
>>>
>>>
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