Doubt on show() function of sysfs attribute

[Mohana Datta Yelugoti]

> 
> See the thousands of examples in the kernel of this if you need proof :)
> 

True. I was actually confused because many kernel examples use
sysfs_emit() and here in sysfs_emit(), the buffer is not completely
filled.

But, i got it now. I will experiment more and will see if i can
send a patch updating sysfs.rst accordingly.

Thank you.

Cheers,
ymdatta.