lkml.org 
[lkml]   [2002]   [Jan]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Query about initramfs and modules
On Tue, Jan 15, 2002 at 06:15:02PM -0500, David Garfield wrote:
>
> Can/will the initramfs mechanism be made to implicitly load into the
> kernel the modules (or some of the modules) in the image?

Most of the mechanism for loading modules for physical devices will be
the /sbin/hotplug interface:
- when the pci core code scans the pci bus, and finds a new
device, it calls out to /sbin/hotplug the pci device
information.
- /sbin/hotplug looks up the pci device info and tries to match
it up with a driver that will work for this device (see the
linux-hotplug.sf.net site for more info on how this works.)
- if it finds a module for the device, it calls modprobe on the
module, and now that pci device has a module loaded.

Repeat this process for the USB, IEEE1394, and other busses that support
MODULE_DEVICE_TABLE in the kernel tree.

> Doing so would allow the initramfs image to be composed solely of the
> modules to be loaded, which would reduce the need for the "klibc". It
> would also eliminate the need for any sort of control script to be in
> the image.

klibc (or some libc) is needed to build /sbin/hotplug, and modprobe in
this scenario.

greg k-h
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:23    [W:0.429 / U:1.304 seconds]
©2003-2014 Jasper Spaans. Advertise on this site