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From: "Henrik Rydberg" <rydberg@euromail.se>
To: Bob Tracy <rct@gherkin.frus.com>
Cc: Greg KH <gregkh@linuxfoundation.org>,
	Ming Lei <tom.leiming@gmail.com>,
	linux-kernel@vger.kernel.org
Subject: Re: 3.5-rcX: USB support without udev?
Date: Sun, 1 Jul 2012 22:41:18 +0200	[thread overview]
Message-ID: <20120701204118.GA1018@polaris.bitmath.org> (raw)
In-Reply-To: <20120701201411.GB8603@gherkin.frus.com>

> If I knew what was missing, I'd create it and be done with it.  Here's
> the scenario...  Kernel built from the standard kernel.org tree.  All
> drivers needed at boot time are built-in, except now there's probably
> something missing on the USB side of things.  No initrd.

Are modules turned off as well?

> I'll attach my
> config file on the good chance someone will spot the missing piece(s)
> quickly.  Note that the DEVTMPFS options are disabled in this config,
> but I'll reenable them if required.  When I said devtmpfs "didn't help,"
> what I meant was, by itself relative to my current configuration, turning
> on devtmpfs made no difference.

I cannot see your attached files, but is there any chance this is
about HID, not USB?

> Per the syslog entries I included in my initial post on this thread, the
> only difference between the pre- and post- usbfs removal cases seems to
> be whatever is needed for the input subsystem to see the USB keyboard
> and mouse.  I see the USB hubs and attached devices getting detected,
> but whatever "glue" allows the keyboard and mouse to work isn't there,
> and the input subsystem doesn't emit the expected messages at boot time.

If you did a 'make oldconfig' on anything prior to -rc5, chances are
you do not have CONFIG_HID_GENERIC=y in your .config.

Henrik

  parent reply	other threads:[~2012-07-01 20:41 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-28 13:16 3.5-rcX: USB support without udev? Bob Tracy
2012-06-28 13:39 ` Ming Lei
2012-06-29  3:36   ` Bob Tracy
2012-06-30  3:35     ` Greg KH
2012-07-01 20:14       ` Bob Tracy
2012-07-01 20:16         ` Bob Tracy
2012-07-01 20:34         ` Romain Francoise
2012-07-01 20:58           ` Romain Francoise
2012-07-01 20:41         ` Henrik Rydberg [this message]
2012-07-01 23:25           ` Bob Tracy
2012-07-02  0:29             ` Bob Tracy
2012-07-02  5:52               ` Henrik Rydberg
2012-07-02 13:07                 ` Bob Tracy

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