[laptop-discuss] Is it possible to remove Speed Cap on USB-Serial driver ?

[Patrick Arnoux]

I have run across this quote a couple of times :
    "Almost all USB-serial (Even ExpressCard) have speed
    limitations on Linux/Solaris due to a cap on the driver. (512k/s)"
Using a Sierra 881 HSDPA modem on a TP61p, I get somewhat upside down throughput
 figures doing a speed test  --    Download : ~400k/s    Upload : ~1200k/s.

Would someone be able to shed some light on this Cap feature and the 
implications of
removing it / patching the code.

Thks
P.A.
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