[linux-audio-user] getting around hotplug (was Re: Keyboard loss @ usb audio disconnect)

[Ross Vandegrift]

On Wed, Nov 16, 2005 at 12:59:14PM -0500, Lee Revell wrote:
> This sounds like a huge waste of time - rather than abandoning something
> as immensely useful as hotplug, just get the bug in the USB driver
> fixed!  AFAICT all the people having this problem are using really old
> kernels anyway.  It's idiotic to abandon hotplug just because you don't
> want to upgrade your kernel to fix a known bug.

Whoa, hang on.  I don't have the problem identified by the original
poster.  I'm just a thread hijacker ::-).

My particular bias against hotplug is two-fold:
	1) It is far more difficult to understand than /etc/rc.d
	2) The only USB device I have is a MIDI interface, which I
just want to leave plugged in.

#1 - sometimes, hotplug doesn't "coldplug" my device properly.  I
don't really know why, and re-plugging the thing in usually works.
I don't understand why they should be different processes.

It's a minor headache that I'd rather just relieve with a shell
script.  Problem is, my Midisport needs firmware loaded.  I need to
make use of hotplug's firmware facilities, since I cannot predict
where in /proc/bus/usb/ the device node will appear.

#2 - I don't need hotplugging!  This is a desktop machine that never
changes.  I have all of one device.  hotplug seems a little like
overkill in my degenerate (but probably very common) case.

Trust me - if I was losing mouse and keyboard, I'd be all over that
kernel upgrade!

-- 
Ross Vandegrift
ross at lug.udel.edu

"The good Christian should beware of mathematicians, and all those who
make empty prophecies. The danger already exists that the mathematicians
have made a covenant with the devil to darken the spirit and to confine
man in the bonds of Hell."
	--St. Augustine, De Genesi ad Litteram, Book II, xviii, 37