Hi I have a fully working system to which I want to add the request firmware mechanism to an existing platform driver I have working. I instrumented mdev in busybox 1.5.1 and in firmware_class.c 2.6.35 so that I could figure this out. What I see with firmware_request() is that the kernel makes the firmware request and does not find any firmware and mdev sees nothing. However if I change my code to do request_firmare_nowait(), the entire system comes up and about 30seconds in the timeout calls my kernel side continue for request_firmare_nowait() and I DO now see my request handled by mdev, however it is a REMOVE request not the ADD request. All this makes me think that platform drivers exist before the hotplug mechanism is able to operate, is this true ? Many thanks Mike |
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