On Fri, May 22, 2015 at 11:04:30AM +0200, Josef Holzmayr wrote: > Howdy! > > I’m currently working on a platform_driver, where I want an > attribute_group to be in effect for every platforn_device that went > through the corresponding .probe() call. Now > http://kroah.com/log/blog/2013/06/26/how-to-create-a-sysfs-file-correctly/ > suggests to set this in the struct device, but as far as I understand > it, this struct is already passed to me. So where can I feed it > earlier in the instantiation? Or do I have to resort to > sighs_create_group()? The "correct" way is to set the platform_driver's driver->groups field to your attribute groups. That way it will be created before the device is bound to the driver. It would be nicer if platform_driver had a groups field, so that you don't have to "dive" into the driver sub-field, but given that you almost always have to do this anyway, it shouldn't be a big deal. Hope this helps, greg k-h _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
