Hi,
May I ask you to read the reply that I sent to
[EMAIL PROTECTED] for this same question (?)
yesterday:
<quote>
Hi,
As Stephen Gowdy said in his reply, 12 Mbps is a
theoretical maximum wire transfer rate for a USB device.
Due to USB protocol overhead and bit stuffing, you
won't see more than around 8-9 Mbps max.
Regardless of that, you are still using development-level
code that sounds like it still needs some work (improvement),
so thanks for your observations.
Which host controller and host controller driver are you
using? If your host controller is UHCI, can you try this
same test with the other UHCI driver and let us know
about its performance also, along with which one you
tried first and second?
Thanks,
~Randy
</quote>
I haven't had a reply from TDNguyen. If you are using
a UHCI host controller, there is also another patch
that I can send to you to try. Perhaps you
can answer those questions along with these:
a. Is it a USB modem? (You didn't say.)
b. What USB backport version are you using?
~Randy
> -----Original Message-----
> From: Jayant Jain [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, July 19, 2000 4:36 PM
> To: '[EMAIL PROTECTED]'
> Subject: [linux-usb] USB Modem Speeds
>
> Our modem gives a performace of 14 KBytes/sec consistently on
> Linux Redhat 6.0 2.2.15
>
> The same modem performs at 28kBytes/sec in windows
>
> What could be the problem
>
> jayant
>
> ---------------------------------------------------------------------
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