On Wed, Apr 08, 2009 at 04:15:12PM +0800, loody wrote: > Dear all: > when I register a platform driver with xxxx_probe, the kernel will > call xxxx_probe with platform_device. > And I know the platform_device is passed with the same name which I > give in platform_driver. > My questions is: > In platfrm_devicde.dev, there are several parameters like below: > > struct device_driver *driver; /* which driver has allocated this > device */ > void *driver_data; /* data private to the driver */ > void *platform_data; /* Platform specific data, device > core doesn't touch it */ > > who assign the above parameters? Different parts of the kernel. driver is assigned by the driver core usually (platform drivers are a bit different, some of them directly bind the device.) driver_data is set by your driver using the proper api call platform_data is also set by your hardware platform. hope this helps, greg k-h -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
