[Gta04-owner] Modem reenummerating (was: Re: Crowdfunding an Ubuntu smartphone)

Dr. H. Nikolaus Schaller hns at goldelico.com
Sat Sep 7 22:08:44 CEST 2013


And another trick for testing the test code (which is important to know):

./femtocom /dev/ttyHS_Control
AT_ORESET

This will reset the modem and it will loose the USB connection and
re-enumerate like this dmesg shows:

[ 6940.011840] usb 1-2: USB disconnect, device number 5
[ 6945.105041] usb 1-2: new high-speed USB device number 6 using ehci-omap
[ 6945.286895] usb 1-2: New USB device found, idVendor=0af0, idProduct=8800
[ 6945.300415] usb 1-2: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[ 6945.323791] usb 1-2: Product: Globetrotter HSUPA Modem
[ 6945.329132] usb 1-2: Manufacturer: Option N.V.

As a side note: the modem accepts more at commands after AT_ORESET for
ca. 1-2 seconds like this sequence shows:

root at gta04:~# ./femtocom /dev/ttyHS_Control 
at_oreset
OK
ati
Manufacturer: Option N.V.
Model: GTM601
Revision: 1.7.4.0 (Date: Jan  5 2011, Time: 11:14:34)

OK
ati
Manufacturer: Option N.V.
Model: GTM601
Revision: 1.7.4.0 (Date: Jan  5 2011, Time: 11:14:34)

OK
ati
ati	<--- tty port hangs (w/o error message!)
ati
ati
ati
ati
^C
root at gta04:~# 

So in general the re-enumeration shares the symptoms of an AT_ORESET.

-- hns


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