addams013
2007-01-30 14:38:41 UTC
I have a Multitech modem that will support AT commands even while the
PPP link is up if I send this:
<wait 2 seconds> +++ <wait 2 seconds>
... and come back online when "ato0" is issued.
I'd like to do this while the PPP link is up because the modem is
aware of certain things. It's wireless, and knows the signal strength
it's seeing, the VSWR, and so on. I'd like the Linux box to know
these things, too, so asking the modem seems natural enough.
After beating my head against several brick walls, it looks like I'm
going to have to put procedures to handle this in pppd itself (since
pppd doesn't look like it wants to share the serial port; even the
usual read(,,) and write(,,) procedures fail). What are the
procedures in pppd that send and receive characters? And what
procedures are run when the PPP link is considered "up"?
Thanks in advance for any help you can lend me. I'm rather new at
this. :)
PPP link is up if I send this:
<wait 2 seconds> +++ <wait 2 seconds>
... and come back online when "ato0" is issued.
I'd like to do this while the PPP link is up because the modem is
aware of certain things. It's wireless, and knows the signal strength
it's seeing, the VSWR, and so on. I'd like the Linux box to know
these things, too, so asking the modem seems natural enough.
After beating my head against several brick walls, it looks like I'm
going to have to put procedures to handle this in pppd itself (since
pppd doesn't look like it wants to share the serial port; even the
usual read(,,) and write(,,) procedures fail). What are the
procedures in pppd that send and receive characters? And what
procedures are run when the PPP link is considered "up"?
Thanks in advance for any help you can lend me. I'm rather new at
this. :)