Subject: Re: Couple of USB queries
To: Mark Davies <mark@mcs.vuw.ac.nz>
From: Rafal Boni <rafal@pobox.com>
List: current-users
Date: 08/09/2003 07:22:41
In message <200308090910.VAA0000509190@bats.mcs.vuw.ac.nz>, you write: 

-> 	From:  Rafal Boni <rafal@pobox.com>
-> 	Date:  Fri, 08 Aug 2003 13:41:15 -0400
-> 
-> > I seem to recall similar oddball things happening when I didn't have the
-> > PCI bus-fixup code enabled... 
-> 
-> That was the problem, it now bursts into life:

Oh, good, glad it helped!

-> ohci0 at cardbus0 dev 0 function 0: NEC USB Host Controller (rev. 0x41)
-> ohci0: interrupting at 11
-> ohci0: OHCI version 1.0
-> usb1 at ohci0: USB revision 1.0
-> uhub1 at usb1
-> uhub1: NEC OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
-> uhub1: 3 ports with 3 removable, self powered
-> ohci1 at cardbus0 dev 0 function 1: NEC USB Host Controller (rev. 0x41)
-> ohci1: interrupting at 11
-> ohci1: OHCI version 1.0
-> usb2 at ohci1: USB revision 1.0
-> uhub2 at usb2
-> uhub2: NEC OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
-> uhub2: 2 ports with 2 removable, self powered
-> ehci0 at cardbus0 dev 0 function 2: NEC USB Host Controller (rev. 0x02)
-> ehci0: interrupting at 11
-> ehci0: EHCI version 0.95
-> ehci0: companion controllers, 3 ports each: ohci0 ohci1
-> usb3 at ehci0: USB revision 2.0
-> uhub3 at usb3
-> uhub3: NEC EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
-> uhub3: 5 ports with 5 removable, self powered
-> 
-> at least its a lot more plausible, not sure if its "right".  This is a two 
-> port card, shouldn't there be a second ehci? and the "n ports with n 
-> removable" where n != 2 seems odd.

I don't think so on the first count, the second does seem a little odd,
but it looks within limits (my VIA based USB2 card has 2, 2 and 4 ports
for the uhci's and ehci respectively, so 3, 3 and 5 doesn't seem out of
bounds).

--rafal

----
Rafal Boni                                                     rafal@pobox.com
  We are all worms.  But I do believe I am a glowworm.  -- Winston Churchill