On Monday, April 18, 2016 11:10:12 PM Howard Su wrote: > I noticed several places there are code like this, especially in some arm > low level drivers. > EARLY_DRIVER_MODULE(aw_ccu, simplebus, aw_ccu_driver, aw_ccu_devclass, > 0, 0, BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE); > > I feel the usage of BUS_PASS_ORDER_MIDDLE is misused. There are another > macro EARLY_DRIVER_MODULE_ORDERED, which take an additional parameter > "order". I believe BUS_PASS_ORDER_xxx is used for that parameter.
No, this is actually correct. The _ORDERED variants actually accept a SI_ORDER_* value to determine how drivers contained in a single .ko file are registered (in particular if you have several drivers in a .ko file you typically want the "top-most" driver to attach last so that all the other drivers are ready once the actual device is attached). -- John Baldwin _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
