Messages in this thread | | | Date | Mon, 06 Jun 2005 11:40:49 +0200 | From | Lukasz Stelmach <> | Subject | Re: device-driver supporting more than one device |
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Ananda Krishnan napisał(a): > Hi All, > > Can a device-driver (a generic serial driver) > support more than one device from different vendors > (hence different vendor ids and device ids)?
In general, yes. Does it apply to the particular driver you mentioned? I don't know.
> If so, > during the boot time how the pci_device_id structure > gets the info about the drvier_data? Would like to > know the name of the function name(s) and file(s) that > are used for this process. Thanks a lot.
The driver contains IDs of hardware it supports. At the boot time each driver registers itself providing this list. Then for each piece of hardware supported by a particular driver .probe function is called. You should definitly look at /usr/src/linux/drivers/usb/usb-skeleton.c. However, it is a usb driver, pci seem to work in a similar manner.
You might also like to read this: http://lwn.net/Kernel/LDD3/
I am quite a newbie to kernel drivers so please correct me someone if I am wrong.
-- Było mi bardzo miło. Trzecia pospolita klęska, [...] >Łukasz< Już nie katolicka lecz złodziejska. (c)PP
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