Re: Usb2 and hal issue

Hi Kane!

Your patch will solve the CPU problem, but will otherwise not fix FreeBSD USB 
support under HAL.

1) Hal should use "devd" to get attach/detach events.
2) Hal should use libusb20/libusb to access USB functions and to enumerate USB 
devices.

--HPS

On Friday 14 November 2008, Coleman Kane wrote:
> On Thu, 2008-11-06 at 01:38 +0100, Diego Depaoli wrote:
> > Hi all,
> > I don't know how provide further details, but on my system there is
> > something of wrong between new usb2 drivers and hald.
> > Top shows hald's cpu load at 100% while with old drivers it's 2-4%.
> > I tried rebuilding hald, loading/unloading each usb2_* device but
> > nothing changed, so I suspect the problem is located in usb2_core.
>
> I figured out the problem, and I have a solution. As the other person
> mentioned, the device name has changed from "/dev/usb" into "/dev/usb
> " (the space is important). However, the hald daemon doesn't use libusb
> on FreeBSD. Here's a patch which tells hald to look at the new device,
> apply it to the root of your ports collection.
>
> Additionally, I think it is a bug that hald busy-loops trying (and
> failing) to open "/dev/usb". Ideally, I think that hald should put a
> sleep in there of some sort, to give up CPU to something else.