On 12/25/2010 6:02 PM, Giuseppe Dia wrote:
Hi all,
I'm trying to make the Omnibook driver
(http://sourceforge.net/apps/mediawiki/omnibook/index.php?title=Main_Page
last version from git) more Meego 1.1 netbook friendly. Compiling and
installing is flawless, and it works (hot keys, blue tooth works on my
Toshiba nb200) but the original driver doesn't have the MODULE_ALIAS
macro defined, so it's not loaded at boot.
As far as I know (correct me if I'm wrong), there's no /etc/modules or
other explicit way to load a module at boot in meego and I understand
that module loading in meego should be done just by enumeration by
kernel only.
So I added the MODULE_ALIAS macro (now modprobe
usb:v0930pxxxxxxxxxxxxxxxxxxxxxx works) and the file 'omnibook' in
modprobe.d with the relevant module options inside (option ectype=12
works for me), but the module isn't loaded during enumeration at boot.
Now the involved hardware doesn't show anywhere, (so the system has no
alias to match to) until the driver itself is loaded.
To summarize:
-) hardware won't show until driver is loaded, so no alias during
enumeration
-) I did a little test adding an alias directive with the a
usb:v0930pxxxxxxxxxxxxxxxxxxxxxxX entry in dists.conf (I know, it's not
supposed to be modified) but it won't load the module anyway.
I know I miss something, but seems to me the classic egg-chicken
problem. Maybe this is the reason why it was left outside the meego
kernel?
Besides this, being a 'group of drivers' rather than a driver for a
single device, choosing the module_aliases correctly is a task on
itself.
Thanks for your advice,
if it's machine specific you can always use the DMI entries to match the
specific machine
this is done by for example the thinkpad fan drivers, and a series of
others....
they do it like this:
/*
* DMI matching for module autoloading
*
* See http://thinkwiki.org/wiki/List_of_DMI_IDs
* See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads
*
* Only models listed in thinkwiki will be supported, so add yours
* if it is not there yet.
*/
#define IBM_BIOS_MODULE_ALIAS(__type) \
MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*")
/* Ancient thinkpad BIOSes have to be identified by
* BIOS type or model number, and there are far less
* BIOS types than model numbers... */
IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */
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