Re: registering a character driver without cdev_init()/cdev_add()

On Wed, May 04, 2011 at 06:55:17AM -0400, Robert P. J. Day wrote:

so rather than the canonical combination of cdev_init() and cdev_add(), this appears to register the pre-defined DSP56K major number, then goes straight to registering the driver with sysfs.

is this now an alternative way of registering character drivers, if you want to register them with sysfs as well? as i read it, device_create() will create the /dev file so is this just a newer way to register character drivers?

device_create will create the /dev file, but you have to have registered that major/minor number before calling it, it does not do the registering for you. thanks, greg k-h