Fwd: How can I disable all USB devices?

夏业添 summerxyt at gmail.com
Tue Jun 5 03:02:38 EDT 2012

Thanks for reply! But it seems not suitable for my job.

Sorry for that I didn't talk about my situation clearly. I was asked
to only enable usb Network Interface Card, and disable all other usb
devices(like keyboard, mouse, stick, etc.).

I need a way to distinguish different usb devices and disable/enable
them. If anyone has some idea, please tell me.

2012/6/5  <Ashish_Bunkar at dell.com>:
> Hi
> You can just disable the USB support for your kernel by editing kernel parameters.
> Just add "nousb" to you kernel parameters In "/etc/grub.conf" and your kernel should not support USB device thereafter.
> Also when you would like to enable them again just remove "nousb" from kernel command line and all should  work fine with that.
> Please let me know if that helped you.
> Ashish Bunkar
> Linux Engineering
> Dell | BDC
> office +91-80-28078131,  mobile +91-7259183696
> Ashish_Bunkar at dell.com
> -----Original Message-----
> From: kernelnewbies-bounces at kernelnewbies.org [mailto:kernelnewbies-bounces at kernelnewbies.org] On Behalf Of ???
> Sent: Tuesday, June 05, 2012 8:48 AM
> To: kernelnewbies
> Subject: How can I disable all USB devices?
> Hi there,
> I want to disable all my USB devices (mouse, keyboard,... ) now, but hope to enable some certain device in the future. And I don't want to recompile kernel or disable usb module.
> I've searched on the Internet, and it seems that udev manage devices connecting to my computer. Can I use udev to disable all USB devices?
> Thanks!
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