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#1 2005-03-09 03:23:00

mmccaskill
Member
From: NC
Registered: 2005-02-21
Posts: 163

USB modules/Hotplug

Just got my Gigabyte GA-K8NF-9 motherboard (NForce4) and setup Arch. For some reason, Hotplug decides to load uhci_hcd, ohci_hcd and ehci_hcd. Unloading ehci_hcd and uhci_hcd makes my USB work. 2 questions
1) How to make hotplug not load uhci_hcd and ehci_hcd (tried putting in /etc/rc.conf with !
2) I have USB 2.0 ports but loading ehci_hcd causes my USB ports to not function. Any ideas?

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#2 2005-03-09 07:13:30

tomk
Forum Fellow
From: Ireland
Registered: 2004-07-21
Posts: 9,838

Re: USB modules/Hotplug

1) Add the unwanted modules to /etc/hotplug/blacklist.
2) Check your logs for error messages. ehci_hcd is the correct driver for USB 2, so there must be something else going on.

Personally, I'd regard 1) as a temporary workaround until 2) is solved.

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#3 2005-03-09 08:08:53

iphitus
Forum Fellow
From: Melbourne, Australia
Registered: 2004-10-09
Posts: 4,927

Re: USB modules/Hotplug

er......

ehci_hcd is needed for usb2. if your usb is working, the driver is loaded.

uhci_hcd is for usb1. if your usb is working, the driver is loaded.

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#4 2005-03-09 08:20:59

nggalai
Member
From: Switzerland
Registered: 2004-08-01
Posts: 215
Website

Re: USB modules/Hotplug

iphitus wrote:

uhci_hcd is for usb1. if your usb is working, the driver is loaded.

Isn't uhci_hcd mainly for intel chipset mainboards? And ohci_hcd for AMD-based systems?

93,
-Sascha.rb

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#5 2005-03-09 13:58:35

mmccaskill
Member
From: NC
Registered: 2005-02-21
Posts: 163

Re: USB modules/Hotplug

I think USB2.0 for NForce4 boards is broken in 2.6.10, possibly 2.6.11 from what I have read. Thanks for the hotplug blacklist though

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