Another question about USB

A-v-S · Post by **A-v-S** » Mon Oct 31, 2005 3:52 pm

UHCI is used by intel chipsets.
OHCI is used by SiS chipsets.
EHCI is backwards compatible with OHCI.

GaeTaN2 · Post by **GaeTaN2** » Mon Oct 31, 2005 4:09 pm

I seem to have only Intel stuffs, so it's UHCI ?
Why doesn't it work then, if it's almost supported

Post by **Jaix** » Mon Oct 31, 2005 5:07 pm

Right now there is also a problem with the UHCI interrupt handling, Fireball tries to fix this, but hasn't succeded yet, but hang on, in time UHCI (which is the most used USB interface) will work.
The OHCI interface isn't as usual but XBox and some HW vendors use it.

The easiest way I know to figure what USB controller that is installed in a computer is to use an installation of windows. Go to the device manager and look for USB controllers and choos properties. Go to the drivers tab and hit the more information button, there you see a list of drives used, one of them looks like this:
c:\Windows\System32\usbohci.sys for OHCI controller and of cource
c:\Windows\System32\usbuhci.sys for UHCI controller.
In my computer I have OHCI, UHCI and EHCI controllers.

GaeTaN2 · Post by **GaeTaN2** » Mon Oct 31, 2005 6:48 pm

Thanks for the tip, so in fact, it's uhci for the motherboard's usb, and ehci for the pci card.
The motherboard's usb don't work...
And I guess the ehci isn't supported ?
Jaix, did you manage to get mouse and keyboard working with one of your usb ?

A-v-S · Post by **A-v-S** » Mon Oct 31, 2005 6:56 pm

EHCI (usb 2.0) is backwards compatible with OHCI, so i think it will work in USB 1.1 mode then.

Post by **Jaix** » Mon Oct 31, 2005 7:38 pm

GaeTaN2 wrote:Thanks for the tip, so in fact, it's uhci for the motherboard's usb, and ehci for the pci card.
The motherboard's usb don't work...
And I guess the ehci isn't supported ?
Jaix, did you manage to get mouse and keyboard working with one of your usb ?

Okidoki, I have successfully run Keyboard on my UHCI controller, but the mouse didn't start, but as Fireball and HPoussin works on the interrupt problem perhaps this issue will be solved too.

GaeTaN · Post by **GaeTaN** » Wed Nov 02, 2005 2:30 pm

Just to say that usb keyboard and mouse don't work on any of my usb slots, uhci or ehci.
Sad, I wanted to test ROS on real hardware, at the moment I can see the desktop and everything but I can't react to it

A-v-S · Post by **A-v-S** » Wed Nov 02, 2005 2:39 pm

Another question, does reactos reconise all usb cards by default, or does it need to add them manually ?

Post by **Jaix** » Thu Nov 03, 2005 12:04 am

A-v-S wrote:Another question, does reactos reconise all usb cards by default, or does it need to add them manually ?

Yes, ReactOS USB is as far as I know PnP, and will work as far as it is developed, there for bug reports to Bugzilla are welcome.
Right now there is something strange between the PS2 and USB that HPoussin are working on: http://www.reactos.org/bugzilla/show_bug.cgi?id=945

Phalanx · Post by **Phalanx** » Thu Nov 03, 2005 1:49 am

GaeTaN wrote:Just to say that usb keyboard and mouse don't work on any of my usb slots, uhci or ehci.
Sad, I wanted to test ROS on real hardware, at the moment I can see the desktop and everything but I can't react to it

Are you using a trunk build? They have a lot more work on them.

GaeTaN · Post by **GaeTaN** » Fri Nov 04, 2005 6:50 pm

I can't, I would have to install it, for the moment I just wanna use the live cds.

Another question about USB

USB team struggles with interrupt handling.

Keyboard but not Mouse

USB is PnP!

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