Hi Greg,

Thanks for the quick reply.

I am using the generic usbserial driver. I do a modprobe usbserial to 
invoke and lsmod lists it as usbserial. The driver on windows is a custom 
driver and not a generic one.

What are some of the other drivers tuned for throughput? Do you have any 
suggestions on how I can tune this one for better throughputs.

Thanks,
Abhijeet

At 10:33 AM 5/1/2002 -0700, Greg KH wrote:
>On Wed, May 01, 2002 at 11:11:21AM -0700, Abhijeet Bisain wrote:
> > Hi,
> >
> >       I am trying to use the usbserial driver with a wireless modem. The
> >       driver tetects the device fine and I can setup ppp over the ttys in
> > /dev/usb/tts directory. But my only issue is the throughput I get using 
> the
> > driver is much lower than expected. When the wireless is connected to
> > windows machine, I can get a TCP throughput of 1.5Mbps and above. But on
> > the usbserial driver, it is only 230kbps.
>
>One other question, which Windows driver are you using to compare this
>against?  A custom one, or the "generic" usbserial driver that Microsoft
>provided the source for a number of years ago?
>
>thanks,
>
>greg k-h



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