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ptp: clarify the clock_name sysfs attribute

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There has been some confusion among PHC driver authors about the
intended purpose of the clock_name attribute. This patch expands the
documation in order to clarify how the clock_name field should be
understood.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Richard Cochran
2012-09-22 07:02:04 +00:00
committed by David S. Miller
parent 1ef761582c
commit de46584675
2 changed files with 8 additions and 2 deletions
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4
include/linux/ptp_clock_kernel.h
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@@ -42,7 +42,9 @@ struct ptp_clock_request {
* struct ptp_clock_info - decribes a PTP hardware clock
*
* @owner: The clock driver should set to THIS_MODULE.
* @name: A short name to identify the clock.
* @name: A short "friendly name" to identify the clock and to
* help distinguish PHY based devices from MAC based ones.
* The string is not meant to be a unique id.
* @max_adj: The maximum possible frequency adjustment, in parts per billon.
* @n_alarm: The number of programmable alarms.
* @n_ext_ts: The number of external time stamp channels.