From: Nikita Edward Baruzdin <nebaruzdin@gmail.com>
To: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: "linux-can@vger.kernel.org" <linux-can@vger.kernel.org>
Subject: CAN documentation
Date: Fri, 25 Jul 2014 17:47:37 +0400 [thread overview]
Message-ID: <1406296057.9487.1.camel@gmail.com> (raw)
Hello, guys,
I'm looking at linux-can/can-modules tree:
2011-06-26 12:47 Oliver Hartkopp
minor doc changes ... tbc
2011-06-10 19:08 Oliver Hartkopp
documentation: rework chapter numbering & references
...
2010-11-22 19:41 Oliver Hartkopp
Added new documentation layout contributed by Daniele Venzano.
Why are all these changes still not in the kernel? I'm not sure if this
is a good idea to split the documentation, but the patches introduce
some new helpful information.
Hence a little follow-up question:
> The timestamp on Linux has a resolution of one microsecond and it is
> set automatically at the reception of a CAN frame.
It seems to me this is not entirely true as the kernel has a support for
SO_TIMESTAMPNS socket option for quite a long time. Could you really use
that option with CAN? Does it make sense to use nanosecond timestamps?
I'm also a bit confused whether these are only the software timestamps
or you can somehow get them from a controller too.
next reply other threads:[~2014-07-25 13:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-25 13:47 Nikita Edward Baruzdin [this message]
2014-07-25 14:03 ` CAN documentation Oliver Hartkopp
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