On Mon, 21 May 2007 21:28:15 +0200, Kay Sievers <[EMAIL PROTECTED]> wrote:
> We could change the driver-core to suppress the creation of an attribute > if the attribute's show() or store() method returns something like > -ENOENT at registration time? > The driver would pass _all_ possible attributes of the device at > registration time, but the core would only create the attributes which > are implemented for this particular device? Would that work for you? > > There are already subsystems who need to do similar things internally > (firewire), and it may be nice to add such functionality to the core. This sounds a bit hackish (overloading the meaning of the show() and store() methods). > You can assign any number of attribute groups to the device. If they > don't have a group name, they will all be created directly at the device > level. Would that work for you? What about generic "conditional attribute groups"? Add a check() method which is called just before adding them, and only add them if check() returned 0 (or doesn't exist)? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
