April 19, 2009

HSDPA USB modem problem

I have a linux kernel 2.6.24 running on an embedded board. I want to connect a HSDPA USB modem to it. Can anyone tell me which one offers best support for this kernel version? Also, I realise most of them come tied with network operators. If so do you think it is wise for me to buy an unlocked hsdpa modem so I can connect any SIM to it??

Although the E220 has been configured for Linux, I can't say for sure that it...

Although the E220 has been configured for Linux, I can't say for sure that it's because of the support of Huawei.

Vodaphone paid for and open-sourced research for Linux drivers for their HSDPA, so you might consider the Vodaphone:
http://www.betavine.net/bvportal/resources/datacards
From linux-drivers.org:

is a software suite for the mobile 3G datacard which works on multiple distributions of the Linux Operating System. Besides managing connections with different technologies like GPRS, UMTS, and HSDPA, this application supports receiving and sending SMS, access to contacts and offers diagnostic information for troubleshooting. The application is free to download and distribute. The software is open sourced technology from a project initiated by Vodafone Group R&D.

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I'm using OpenWRT kamikaze 8.09 version with few embedded boards and Access...

I'm using OpenWRT kamikaze 8.09 version with few embedded boards and Access points as well, I'm connecting huawei E220 USB HSDPA cards and they're working without troubles.
Currently using different kernels but 2.6.25, 2.6.27 have no problems with it, by the way I don't think 2.6.24 and other kernels can cause troubles to your modem.
Tell us something more about your embedded device, your toolchain and devel environment or linux distro if you're using something more widespread.
Don't think the kernel is the problem, maybe something about your config or your local devel environment, if you look at OpenWRT or other embedded distros you'll see they (we) are using these modems

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I have an external unlocked 3G modem board that works great with 2.6.24....

I have an external unlocked 3G modem board that works great with 2.6.24. Found it on ebay for $25. I think it counts as a mini-pci express bridge because the mini-pci express cellular modem it takes appears as though it would on a laptop.

Normally those cell modems show up as two usb serial ports accepting AT commands. One is for communication, and the other one is so you can query modem status information (signal, etc)

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