> If you want more than the 2.6 kerneldoc, use the 2.6 sources.
> 
I have read all this. I have read also some other sources of UHCI drivers. And not 
found answers.

Kernel 2.4.20, 2.5.75 and 2.6.0 use all the same base driver hc_sl811.c + 
hc_sl811_rh.c, 2.6.0 only moved into subdirectory and renamed some structs.
Only 2.4.22 use a rewited driver with isosynchronous mode. (not tested)

I can also work with 2.6.0 and downgrade to 2.4, that is the same problem. If I 
finish, I need 2.4 AND 2.6. I am beginning with 2.4, because it is my working system 
on development platform.

> Well, I understand the SL811 code needs work.  But once the
> first controller is working, the second is usually identical
> except that it uses different register pointers and irqs... :)

SL811 source works with one controller at fist address.
I can also unload module and reload for second controller by giving alternate io range.
But I have two controllers in same CPU. Module can not load again: OK. So I must 
detect two controllers in loading of module, and must create second HCI. Also 
understand.

Question:
Its a genaral problem for all USB drivers. How can I install a second controller at 
the same time.
Hint: Controller is connected on ISA-bus, not on PCI and not PCMCIA.

Henry




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