I doubt if this is possible between built-in drivers and modules. The way u r thinking might not work properly as even if ur driver probed first how would u stop probing the common one. Once that will be probed it will mess with ur settings. As these drivers are for same devices u must have common logic to separate these out. I m not familiar with mmc drivers, might have some other way to implement. Sent from my iPhone On 19-Apr-2012, at 8:38 PM, Geraint Yang <geraint0923@gmail.com> wrote:
To modify the common prob, I need to rebuild the common driver, but the driver I am develop is not just for myself, I could ask everyone who will use this specail sd card to rebuild their driver(or kernel).
So is it possible to modify the priority of prob just calling some existing kernel APIs?
On Thu, Apr 19, 2012 at 10:40 PM, Tirtha Ghosh <gtirtha@gmail.com> wrote: Sorry missed ur whole details. In that case, u modify the existing driver and call ur part of ur code from common probe depending on ur special condition otherwise keep the existing flow.
Sent from my iPhone
On 19-Apr-2012, at 7:46 PM, Geraint Yang <geraint0923@gmail.com> wrote:
Hi Arun,
Thanks for your reply.
I have ever thought about this method, but my sd driver is only for my own special sd card which is not the common sd card and my driver could not deal with the common sd card. So I need the default sd driver for other common sd cards.
I hope that mmc core could let my driver probe first, if the sd card is my special one, my driver will operate it in my own way, otherwise mmc core will call the prob function of the default sd driver then.
On Thu, Apr 19, 2012 at 9:50 PM, Arun KS <getarunks@gmail.com> wrote: Hi Geraint,
On Thu, Apr 19, 2012 at 2:05 PM, Geraint Yang <geraint0923@gmail.com> wrote: Hi folks, I am writing a kernel module for a sd card, but when I insert a sd card into my box, the default sd driver will probe before my driver, and my driver will never have chance to probe. Is there any method to make my driver probe the sd card before the default sd driver?
Why can't you disable the default sd card driver in your .config?
Thanks in advance.
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-- Geraint Yang Tsinghua University Department of Computer Science and Technology
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-- Geraint Yang Tsinghua University Department of Computer Science and Technology