On Thu, Mar 29, 2007 at 10:50:34PM +0530, Rajat Jain wrote: > Hi, > > I was wondering that while using dynamic device numner allocation, can > we ever have a scenario like following (using alloc_chrdev_region): > > 1) Char Driver A is hooked on Major num X, minor numbers 0-10 > 2) Char Driver B is hooked on (same) Major num X, minor numbers 11-20 > > If yes, how will the userland get to know about the dynamically > allocated range (needed to create device nodes), since /proc/devices > only shows major numbers? Through the exporting of this information in sysfs by using the device_create() call that you are required to do in order to have your device show up properly there :) thanks, greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs
