Re: What to do with all of the USB UHCI drivers in the kernel?

Andre Bonin
2002-05-22T19:36:13Z

Greg KH wrote:
> On Tue, May 21, 2002 at 09:10:04PM -0400, André Bonin wrote:
>
>>----- Original Message -----
>>From: "Greg KH" <greg@kroah.com>
>>To: <linux-usb-devel@lists.sourceforge.net>
>>Cc: <linux-kernel@vger.kernel.org>; <Linux-usb-users@lists.sourceforge.net>
>>Sent: Monday, May 20, 2002 6:31 PM
>>Subject: What to do with all of the USB UHCI drivers in the kernel?
>>
>>
>>
>>>Ok, now that 2.5.16 is out, we have a total of 4 different USB UHCI
>>>controller drivers in the kernel! That's about 3 too many for me :)
>>>
>>>So what to do? I propose the following:
>>>
>>> From now until July 1, I want everyone to test out both the uhci-hcd
>>> and usb-uhci-hcd drivers on just about every piece of hardware they
>>> can find. This includes SMP, UP, preempt kernels, big and little
>>> endian machines, and loads of different types of USB devices.
>>>
>>The UHCI driver never recognizes my hardware. The OHCI driver (in the
>>2.4.18 kernel) does however. My Asus A7M266-D doesn't have an onboard USB
>>but they ship an add-on card with the motherboard (made by Asus).
>>
>
> This is probably because you have an OHCI hardware device, not a UHCI
> device. What does 'lspci -v' say for your machine?

Sorry, i'me not too familiar with the USB architecture. Anyway here is
the relevant lspci entries (note: I did this under my working 2.4.18)

02:08.0 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
Subsystem: Unknown device 807d:0035
Flags: bus master, medium devsel, latency 32, IRQ 19
Memory at cd000000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [40] Power Management version 2

02:08.1 USB Controller: NEC Corporation USB (rev 41) (prog-if 10 [OHCI])
Subsystem: Unknown device 807d:0035
Flags: bus master, medium devsel, latency 32, IRQ 16
Memory at cc800000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [40] Power Management version 2

02:08.2 USB Controller: NEC Corporation USB 2.0 (rev 02) (prog-if 20 [EHCI])
Subsystem: Unknown device 807d:1043
Flags: bus master, medium devsel, latency 32, IRQ 17
Memory at cc000000 (32-bit, non-prefetchable) [size=256]
Capabilities: [40] Power Management version 2

> And how does 2.5.17 work for you?

Not too good beacuse I don't have the option of enabling OHCI :) Are we
still keeping it?

> thanks,

I thank you sir!

>
> greg k-h
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