On Thu, 8 Jul 2004, Alexandre Aractingi wrote:

> ... and this indeed made my Genesys-based USB-to-IDE converter work with
> 2.6.7, both for write and read commands. I transferred over 14G of data
> with no problem. Only after some operations the drive became
> write-protected, I had to unmount / remount it, but otherwise everything
> was fine.
> 
> I experienced upload rates from 6 to 20 MBps (but the FAT partition on
> the drive might cause problems too, it's an old, messy one).
> 
> Somehow I lost my network when using this config, but I seem to recall a
> thread about that too, I'll dig into that later.
> 
> Thanks to everyone who made it possible! Of course I'm available to test
> any change/enhancement that you guys would want to add...

This is great!

As a test, see what happens when you don't use the first part of the 
patch.  That is, keep max_sectors set to 128 instead of reducing it to 64.  
If that doesn't work and the drive locks up, try setting max_sectors to 
120.  Generally speaking, larger values mean higher throughput -- up to 
the point where the drive stops working!  We already know that Genesys 
devices can't handle max_sectors larger than 128.

Alan Stern



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