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   OS2      Fidonet International OS/2 Conference      3,371 messages   

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   Message 1,247 of 3,371   
   Lars Erdmann to All   
   Re: Update to USB host controller driver   
   22 Mar 11 23:05:04   
   
   jhgB\@_Qjd4ZOFC^CT1A^BL@[N6iTbKebAoFIYEc^QU3`d;EljGKkTfHE:K   
   From: "Lars Erdmann"    
      
   No, /S:1 is the fastest.   
      
   Lars   
      
   "Andy"  schrieb im Newsbeitrag    
   news:stfVq7QNr4pc-pn2-y1h4bX7VFr40@localhost...   
   > On Sun, 20 Mar 2011 19:59:10 UTC, Lars Erdmann    
   > wrote:   
   >   
   >> I have again updated the USB host controller drivers    
   >> USBUHCD.SYS,USBOHCD.SYS,USBEHCD.SYS.   
   >> I have now placed these on hobbes.   
   >> They will eventually make it into directory:   
   >> /pub/os2/system/drivers/misc   
   >>   
   >> See enclosed readme.txt for fixes.   
   >>   
   >> Please be aware that suspend/resume is very likely to NOT work correctly    
   >> at this time. We are looking into it.   
   >>   
   >>   
   >> Lars   
   >   
   > I am finding that the write speed of the version 8 usbehcd.sys to be   
   > an order of magnitude slower than the IBM driver.  I am copying about   
   > 9G of files to a 700G NTFS formatted USB drive (via the netdrive   
   > plugin).  With the IBM drivers I have always found the throughput to   
   > jump around alot... I have seen anywhere from 500K to 5000K with the   
   > average at 1900K.  With the version 8 driver I was getting very little   
   > variance but it was running at 192K with peak at maybe 196K.   
   > It took a long time to enumerate the drive as well (both the 700G HD   
   > and an 8G flash drive were slow to enumerate) with the version 8   
   > driver.  I did patch the IBM driver for the fastest speed and set the   
   > /S:64 which I presume to be the fastest setting.   
   >   
   > Andy   
   > --    
   >    
      
      
   --- Internet Rex 2.31   
    * Origin: Arcor (1:261/20.999)   

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