Messages in this thread | | | From | Shawn Leas <> | Subject | RE: USB device allocation | Date | Wed, 6 Oct 1999 17:08:47 -0500 |
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I don't think we want to trap open()... Just a guess, but I'm sure that's what you were hinting at.
-Shawn
-----Original Message----- From: Alex Nicolaou [mailto:anicolao@cgl.uwaterloo.ca] linux-usb@suse.com Subject: Re: USB device allocation
Khimenko Victor wrote:
> P.S. It's the same as kerneld/kmod: it's not really needed -- you can load > module by hand when needed. But it's convenient to have them autoloaded when > needed. The same with devfs: driver is loaded ONLY when I try to use device. > It's CAN NOT be done without virtual filesystem.
This is false. A skeletal device driver could be written that traps open() and inserts the correct kernel module for the device when open is called, passing the open args to the new driver. As long as there's some way to tell what the right module to load is based on the filename passed to open(), this approach should work find and does not require a virtual filesystem.
Now, as to which way is more elegant ...
alex
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