Hi Greg, Thanks for your response. On Tue, May 23, 2017 at 12:04 PM, Greg KH <greg@kroah.com> wrote:
On Tue, May 23, 2017 at 11:58:31AM +0530, Madhu K wrote:
Hi All,
why there is no character device entry present in /sys/class? where as block and net device entries are present.
I see character devices there, but not the device nodes. I don't see block device nodes there either.
If I am wrong please correct me, there is a folder called block in /sys/class. is block not containing block device nodes?
Not only in /sys/class, for that matter why there is no character device entries present in /sys file system.
What do you exactly mean by "character device entries"?
like block and net why there is no char folder
please help me to understand for what purpose char devices are kept away from / sys file system.
Have you read the driver model chapter in the Linux Device drivers book, or the in-kernel sysfs documentation?
thanks,
greg k-h