usb serial port speed

Per olof Ljungmark peo at
Thu Apr 17 21:05:19 UTC 2008

Robert Huff wrote:
> Per olof Ljungmark writes:
>>  Finally got through to get a Huawei E220 3G modem working, now
>>  the question is, how can max the speed from the serial (USB)
>>  port? The modem is theoretically capable of several mbit/s.
> 	With the right driver, the USB stack is capable of the full 480
> mbits/second.
> 	(In theory, anyway; I've never been able get mine anywhere near
> that.)

I've cranked ubsa.c to 921600 and that seems to work, I'll try to take 
it further tomorrow. We'll see.


More information about the freebsd-questions mailing list