On Tue, 26 Jan 2021 23:07:24 +0530, Mohana Datta Yelugoti said: > Hello everyone, > > I am going through Documentation/filesystems/sysfs.rst. > > It says that sysfs allocates a buffer of size PAGE_SIZE and > passes it to the show/store functions of the attribute. On > read(), the show() method should fill the entire buffer[0]. 'git blame' indicates that except for a commit that converted it to RST format, that file is essentially the same as it was when Linus originally imported the kernel tree into git. So it's describing the situation as it was in 2005, and probably way out of date.
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