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svoufff
n00b
Joined: 31 Oct 2006
Posts: 2
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 Posted: Mon Nov 06, 2006 5:10 pm Post subject: usbfs or udev : wich one is loaded first ? |
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Hi,
i'm trying to make a midi audio interface (M-audio Midisport 2x2) work on Gentoo.
The device needs a firmware upload at boot time that is realized by fxload, after udev discovered the device.
The whole process doesn't woks at boot time.However, if i unplug/replug the usb cable once the OS is fully loaded, everything works perfectly.
So would it be possible that the USB filesystem (/proc/bus/usb) is not yet mounted when udev starts ?
If someone would know the relative boot order of usbfs and udev (and maybe how to change that) i would be soooo happy to learn about it.For now i'm stuck with this problem.
Thanks !
Last edited by svoufff on Tue Nov 07, 2006 3:53 am; edited 1 time in total |
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dev-urandom
Apprentice
Joined: 24 Jun 2005
Posts: 260
Location: Huh?
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| Posted: Mon Nov 06, 2006 10:47 pm Post subject: Re: usbfs or udev : wich one is loaded first ? |
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| svoufff wrote: | Hi,
i'm trying to make a midi audio interface (M-audio Midisport 2x2) work on Gentoo.
The device needs a firmware upload at boot time that is realized by fxload, after udev disvovered the device.
The whole process doesn't woks at boot time.However, if i unplug/replug the usb cable once the OS is fully loaded, everything works perfectly.
So would it be possible that the USB filesystem (/proc/bus/usb) is not yet mounted when udev starts ?
If someone would know the relative boot order of usbfs and udev (and maybe how to change that) i would be soooo happy to learn about it.For now i'm stuck with this problem.
Thanks ! |
/proc/bus/usb is mounted from localmount - this happens during the boot softlevel. I am not sure about udev, but IMHO this should be after usbfs is mounted. Now to answer your question, you should be looking at coldplug IIRC. This does a lot of funky initialization stuff during bootup - also you could try tweaking your udev rules to see whether that might help.
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