[sane-devel] Re: [linux-usb-devel] Bad Performance uhci (vs. usb-ohci ,ohci) ->2.4.18pre9 breaks libusb-0.1.4

[Gene Heskett]

On Tuesday 12 February 2002 03:30 pm, Gunther Mayer wrote:
>Greg KH wrote:
>> On Sun, Feb 10, 2002 at 11:10:07AM +0100, Gunther Mayer wrote:
>> > Hi,
>> > the "uhci" module suffers from very bad performance
>> > (linux-2.4.17).
>> >
>> > Scanning 150dpi A4 (merlin670 for Canon N670U over
>> > libusb-0.1.4) gives: uhci:    135 sec.
>> >   usb-uhci: 43 sec.
>> >   ohci:     35 sec
>>
>> This should be fixed in the latest 2.4.18-pre patches.  Can
>> you grab the latest one, and let us know if you still have the
>> same problems with the uhci driver?
>
>2.4.18pre9 breaks "libusb-0.1.4" and so my application:
>
> mc:~/libusb-0.1.4/tests # ./testlibusb
> bus/device  idVendor/idProduct
> bus=0x8049de8 dev=0x1029
> 001
> Segmentation fault (core dumped)

Thats not all it breaks folks, iptables (last release) gets a 
very upset tummy over it, so I'm back to 2.4.17 with the 
scheduler patches.

Message duely sent to Mathias of course.  And no answer just yet.

-- 
Cheers, Gene
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