Re: [PATCH 1/1] LinuxPPS: Pulse per Second support for Linux

From: Jan Dittmer
Date: Fri Feb 16 2007 - 16:19:47 EST

Rodolfo Giometti wrote:
>>> +PROCFS support
>>> +--------------
>> New features shouldn't introduce new /proc stuff.
> It's a must? I can leave procfs for backward compatibility with old
> utilities?

Hmm, as this is a new feature with regard to the mainline kernel, old
utilities don't count (if you can install a new kernel you can also
be expected to install new user-space tools for the new feature).

>> You read the comment above your line?
> No, sorry. I'm going to choose another id number... or can I keep 17?

I don't know, ask whoever is responsible for the file.

>>> +#define to_class_dev(obj) container_of((obj), struct class_device, kobj)
>> pretty generic name.
> I should change it?

If it's of general use put it in the appropriate header file. If it's
just for the pps subsystem name it as such.

>> Have you thought about 32/64bit issues?
> No. I have no 64 bits machine to test the code...

Hmm, think about x86_64 with 64-bit kernel and 32-bit userspace, probably
having got different padding in the struct. Read LDD3, chapter 11,
especially 11.4 .

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