user/sven/linux.git/include/linux/ptp_clock_kernel.h, branch v3.0.42Linux Kernel
https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=v3.0.422011-05-23T20:01:00Zptp: Added a brand new class driver for ptp clocks.2011-05-23T20:01:00ZRichard Cochranrichardcochran@gmail.com2011-04-22T10:03:08Zurn:sha1:d94ba80ebbea17f036cecb104398fbcd788aa742
This patch adds an infrastructure for hardware clocks that implement
IEEE 1588, the Precision Time Protocol (PTP). A class driver offers a
registration method to particular hardware clock drivers. Each clock is
presented as a standard POSIX clock.
The ancillary clock features are exposed in two different ways, via
the sysfs and by a character device.
Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: John Stultz <john.stultz@linaro.org>