In message <[EMAIL PROTECTED]>, Takanori Watanabe writes:
>In message <[EMAIL PROTECTED]>, Poul-Henning Kamp wrote:
>
>>DEVFS:
>
>> 3. major/minors will be dynamically assigned.
>
>So we will need file to list node id list in printf(9) format,
>instead of /sys/conf/majors.
I am not sure about this... [1]
>And more better if we generate device name #define or array of
>string from the file. This will help us implementing loading
>module when an user process attempt to open some nodes that
>owned by unloaded modules.
and even less about this... [2]
That said, just because I don't like it doesn't mean that people
should try to prototype it and see if I'm wrong...
Poul-Henning
[1] A major part of the drive behind DEVFS is to avoiding the need
to register device drivers in a magic, global file. I will agree
that it is an predictable outcome that one day two drivers will
both try to be /dev/foo but he, they get to haggle that one out for
themselves.
[2] I simply cannot see us kldload'ing stuff in response to
ls -l /dev/watchthis
(This is a trick answer: The point is that at VOP_LOOKUP time
where the device cloning runs, you don't know for what operation
the VOP_LOOKUP is called: stat, open, remove, rename... (Well,
some of them you do, but not the interesting ones).
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
[EMAIL PROTECTED] | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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