Hi,
@ Sasi sir,
Software problems tend to be predictable and repeatable. This one
sounds otherwise. So I can't say for sure I have a solution. But I did find
a possible explanation and solution. The device may be so new that linux
support may be just appearing (note that the USB vendor and device IDs are
not recognised in the lsusb output). A solution to similar problem in a 3G
dongle from the same vendor is given in the following blog:
http://amit-mendapara.blogspot.in/2010/11/amazing-bsnl-3g.html<http://amit-mendapara.blogspot.in/2010/11/amazing-bsnl-3g.html>
The post has a detailed explanation of the solution (assuming that I am
looking at the correct problem). Others also have suggested the same
solution. The problem description is given by the
usb-modeswitch<http://www.draisberghof.de/usb_modeswitch/>tool site as:
More and more USB devices (especially high-speed WAN stuff, based on cell
> phone chipsets containing that feature) have their MS Windows drivers
> onboard; when plugged in for the first time they act like a flash storage
> and start installing the driver from there. After installation (and on
> every consecutive plugging) the driver switches the mode internally, the
> storage device vanishes (in most cases), and a new device (like an USB
> modem) shows up. Modem maker "Option" calls that feature "ZeroCD (TM)"
> since it eliminates the need for shipping a separate driver carrier.
>
> In the beginning, nothing of this was documented in any form and there was
> hardly any Linux support available.
> On the good side, most of the known devices do work in both modes with the
> available Linux drivers like "usb-storage" or "option" (an optimized serial
> driver for high-speed modems).
> That leaves only the problem of the mode switching from storage to modem
> or whatever the thing is supposed to do.
>
What I believe is the problem is that your USB dongle is getting mode
switched correctly only in some instances - may be due to some other
factor. Sir, you could do some experiments as suggested in the blog to
determine if this is indeed the problem. If you need assistance with more
analysis, please post the result of the following command (The result would
be enlightening for me and others even otherwise):
*lsusb -vd 230d:0007*
@ Arun sir,
I believe that you modem is device 19d2:2003. Could you post the result
from:
*lsusb -vd 19d2:2003
*
Regards,
Gokul Das
--
"Freedom is the only law".
"Freedom Unplugged"
http://www.ilug-tvm.org
You received this message because you are subscribed to the Google
Groups "ilug-tvm" group.
To control your subscription visit
http://groups.google.co.in/group/ilug-tvm/subscribe
To post to this group, send email to ilug-tvm@googlegroups.com
To unsubscribe from this group, send email to
ilug-tvm-unsubscr...@googlegroups.com
For details visit the google group page:
http://groups.google.com/group/ilug-tvm?hl=en
