On Wed, 3 Dec 2008 01:34:56 -0600
Frank Cox wrote:
> As you can see, it took six minutes before the device somehow
reset itself and
> the machine realized that it had a modem attached.
I have now discovered what changes when the five minute delay is up. As
mentioned before, the modem takes 5 minutes before it creates the /tty/USB?
devices.
Somehow, the modem changes its identity after being plugged in for 5 minutes.
Jamie Bernstein is also using a Novatel EVDO modem and he sent me a work-around
for this bug yesterday:
This command will cause the modem to immediately do its thing (reset?) and
create the /dev/ttyUSB? devices.
eject /dev/cdrom
After entering this command at a terminal prompt (or putting it
into /etc/rc.local if the modem is connected on boot-up) the modem immediately
starts working. No 5 minute wait required.
Therefore, if there is some way that the kernel driver for this modem can issue
a similar "reset" command, the problem may go away.
I have added a note about this to the bug report at:
https://bugzilla.redhat.com/show_bug.cgi?id=473166
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