freebsd-skq/contrib/ntp/kernel/sys/chudefs.h
1999-12-09 13:01:21 +00:00

23 lines
645 B
C

/*
* Definitions for the CHU line discipline v2.0
*/
/*
* The CHU time code consists of 10 BCD digits and is repeated
* twice for a total of 10 characters. A time is taken after
* the arrival of each character. The following structure is
* used to return this stuff.
*/
#define NCHUCHARS (10)
struct chucode {
u_char codechars[NCHUCHARS]; /* code characters */
u_char ncodechars; /* number of code characters */
u_char chutype; /* packet type */
struct timeval codetimes[NCHUCHARS]; /* arrival times */
};
#define CHU_TIME 0 /* second half is equal to first half */
#define CHU_YEAR 1 /* second half is one's complement */