Re: [Mbm-devel] F3507/F3607 Software reset on Alix 6E2 + Ubuntu10

[Carl N. <car...@er...>]

Hi Ahmed.
If you toggle power it is important to follow the duration according to the Integraters guide.

/Carl


From: Ahmed Theba [mailto:ah...@se...]
Sent: den 22 december 2010 09:06
To: Carl Nordbeck
Subject: Re: [Mbm-devel] F3507/F3607 Software reset on Alix 6E2 + Ubuntu10

Hi Carl,

Thanx for the reply. Actually cdc_ether works correctly but I seem to get a random dhcp
lease time as a result of the ethernet emulation.

This random lease time is only an issue when the lease time is less than 5 minutes
which does tend to happen. I have a script that runs every 5 minutes in order to maintain
connection. I am using a Alix 6E2 at points on the network that need to be always available
and return data to my central server.

Wrt the reset pin I am going to have to find a work around... Possibly a relay attached to the
power of the modem to toggle modem power?

Regards,
Ahmed
On Tue, Dec 21, 2010 at 10:27 PM, Carl Nordbeck <car...@er...<mailto:car...@er...>> wrote:
Hi Ahmed.
The F35 & F36 do not support the PCI reset pin.

This is strange we have not seen any issues with the dhcp lease time.
If there are issues with cdc_ether that cannot been seen on PPP, I suspect that the kernel version you are running have USB issus.
Please try a later kernel or check for patches.

What kind of hardware are you running on?

/BR
Carl

From: Ahmed Theba [mailto:ah...@se...<mailto:ah...@se...>]
Sent: den 21 december 2010 14:13
To:
Subject: [Mbm-devel] F3507/F3607 Software reset on Alix 6E2 + Ubuntu10

Hi,

I have most things wrapped up with the F3507g/F3607g and switching to pppd/wvdial instead of cdc_ethernet
seems to be much more stable as an active connection now runs smoothly without disconnecting due to a random
dhcp lease time. The modem still randomly gives the following errors:

1) lockup - Chat commands return with an "input/output" error
2) chat command doesnt work correctly against the modem.
3) Device does not seem to be created/recognised by the OS i.e.
no ttyACM0-3 and no ttyACM listed within /proc/devices either.

Usually in these situations only rebooting the entire device resolves the problem.
I have been reading up and there seems that there is a way where just the modem is switched
off and on? i.e. the miniPCI reset?

I have read somewhere else that echo 0 > /sys/devices/.../<device> can turn the card off in software
but Im not sure if this is supported on the Alix as I cannot find a corresponding device.

Does the ericsson modem work with the miniPCI reset pin? This would be much more advantageous to
not have to reboot the entire device and instead just toggle the modem using software.

Any help or pointers in the right direction will be much appreciated.

Regards,
AT