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ptp: Add a method for obtaining the device index.

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This commit adds a method that MAC drivers may call in order to find out
the device number of their associated PTP Hardware Clock.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Richard Cochran
2012-04-03 22:59:16 +00:00
committed by David S. Miller
parent 2173bff5dc
commit 995a9090b2
2 changed files with 14 additions and 0 deletions
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8
include/linux/ptp_clock_kernel.h
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@@ -136,4 +136,12 @@ struct ptp_clock_event {
extern void ptp_clock_event(struct ptp_clock *ptp,
struct ptp_clock_event *event);
/**
* ptp_clock_index() - obtain the device index of a PTP clock
*
* @ptp: The clock obtained from ptp_clock_register().
*/
extern int ptp_clock_index(struct ptp_clock *ptp);
#endif