Re: [LAU] setting up hardware priority

From: Clemens Ladisch <clemens@email-addr-hidden>
Date: Tue Aug 16 2011 - 18:34:40 EEST

Renato wrote:
> Hello, I'm trying to find out if plugging my USB soundcard in different
> USB ports of my laptop makes any difference. If I got it right, I should
> choose the one with the lowest IRQ. So, with "lspci -v" I can see I
> have 4 "USB Controller" devices, each with their own IRQ (lowest one is
> 16 which seems to be shared by video card...) - but how do I know which
> one my sound card is plugged into?

To see which bus belongs to which PCI device, run:
  ls -l /sys/bus/usb/devices/usb*

Regards,
Clemens
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Received on Tue Aug 16 20:15:02 2011

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