Hi all,<div><br></div><div>Recently, I bought a Teracom datacard (Linktop / LW273) distributed by BSNL in India. The device was not working out of the box with ModemManager or ofono as the usb_modeswitch was unable to switch the device from data interface to modem.</div>
<div><br></div><div>After few trials, I managed to switch the device to modem mode using usb_modeswitch and then ModemManager was able to detect my device and I was able to use NetworkManager to make connection. But with ofono, it&#39;s not working even though it&#39;s stated on the ofono wiki that generic AT modems should work out of the box.</div>
<div><br></div><div>Then I tried with different existing ofono drivers by adding udev rule in /lib/udev/rules/97-ofono.rules and found that the `nokia` driver (which is used for Nokia CS-10 and CS-17) is working with this device. However, ofono debug (with OFONO_AT_DEBUG=1) says sms feature is not available for the device. So I think, this driver needs to be more generic,</div>
<div><br></div><div>In my opinion, ofono should have a generic driver for such AT modems say `atgen` or similar. I am attaching lsusb output as well as output of udev monitor. Hope this will help.</div><div><br></div><div>
Regards</div><div>--</div><div>Amit Mendapara</div>