HSDPA Modem slow

["Luigi Grilli" <luigi.grilli@xxxxxxx>]

Hi,
I have tested 2 usb HSDPA modems:
HUAWEI 220
Globesurfer Icon
Both modems works fine and connects with pppd (2.4.4).
The problem is that I can't make them run at upload speed higher than
64kbps. The download works fine at about 200kbps.
This is not a modem problem as long as in a Fedora 5 PC Linux system
running the same kernel version(2.6.15) it works at least at double
speed. Anyway in this device (Neruos-OSD) I can't make it run at higher
speeds not even using option.c driver or aiprime.c driver. I also tried
to use the patch for usb-serial.c to increase buffer size but no way!
Any help or suggestion will be really appreciated.
Thanks
Luigi 


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