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Alan McKinnon wrote: |
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> On 04/10/2013 23:52, Walter Dnes wrote: |
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>> |
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>> Do *NOT* remove lowspeed USB driver... unless you have a rescue USB |
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>> stick boot handy. I tried that a few years ago and found that my USB |
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>> keyboard and mouse stopped working. UHCI is used by Intel and VIA cpus, |
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>> according to the help in "make menuconfig". AMD may be OHCI, I don't |
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>> know. |
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>> |
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> It depends on the hardware on the motherboard, not on the CPU. Different |
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> cpus for the most part have matching chipsets and the USB implementation |
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> is in the chipset. USB1 had two implementations - uhci and ohci. |
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> |
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> If you have hardware that is usb1 only, then you need those drivers. |
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> These days, that is rare. These days, most motherboards have lots of |
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> usb2 ports and when you plug in a keyboard, they run in usb1 mode but |
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> still use the ehci driver to do it. I have a usb1 keyboard and mouse |
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> plugged into this laptop right now: |
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> |
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> $ lsmod | grep -i \[uo\]hci |
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> firewire_ohci 31868 0 |
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> firewire_core 50381 1 firewire_ohci |
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> $ lsmod | grep -i ehci_hcd |
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> ehci_hcd 38782 1 ehci_pci |
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> usbcore 152800 7 |
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> btusb,uvcvideo,usb_storage,ehci_hcd,ehci_pci,usbhid,xhci_hcd |
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> |
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> No [uo]hci. And the only machine I have left with usb1-only hardware |
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> dates from 2004, everything else uses only ehci and the lowspeed drivers |
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> are not even built. |
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> |
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> Dale changed his motherboard recently, presumably he knows what his |
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> chipset offers |
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> |
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This is the rig I built a few years ago. It has a Gigabyte mobo but it |
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hasn't been changed yet. I was planning on it but family issues moved |
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that from a burner to not even on the stove and cold as ice. This issue |
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just sort of popped up out of the blue. Also, I'm using the same kernel |
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I been using for a while now. 3.9.5-gentoo I been using that kernel |
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since the middle of June. I have tested newer ones but ran into other |
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issues, nvidia mostly. |
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|
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My keyboard/mouse is very old school. PS/2. :-D |
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|
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Dale |
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:-) :-) |
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-- |
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I am only responsible for what I said ... Not for what you understood or how you interpreted my words! |
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