On Fri, Jul 17, 2009 at 1:45 PM, Daniel Baluta <daniel.bal...@gmail.com>wrote:
> Hello, > > > I want to create sysfs entries for my character device > > in order to manipulate (show, store) the device parameters. > > > > I am registering the character driver by > > alloc_chrdev_region + cdev_init + cdev_add. > > > > what is the preferred method to create sysfs > > entries for the new character device? > > > > The hardware for which I am writing driver is like this > > Its is a PCI card with 4 or 2 CAN devices(depending > > on the board varient) on it. /dev/canN will be the > > dev node for the devices > > > > My doubt is whether I have to create sysfs entries > > in the folder /sys/bus/pci/devices/XXXX or > > use class_create() + device_create() and then > > create the entries in the folder /sys/class/my_new_class/? > > After all, what decisions did you take? > How does your sysfs entries look like? > I decided to create new class in sysfs so the device details will come in /sys/class/xxxx/xxx. This will expose the dev_t(major and minor) to the user. As i am not planning for mainline submission i think this won't be a problem. And all the hardware specific details will be exposed through the pci_dev structure. Arun C
