Porting float and double variable in linux kernel

[Jitendra Pradhan]

Hi All,

 

I am currently doing porting work from CAVIUM based code to linux 2.6
kernel. As per my requirement I have to port the below piece of code to
linux 2.6.9

 

----------------------------------------

void NHNPGetNTPTime(struct timeval strTv, unsigned long *ntpLsw, unsigned
long *ntpMsw)

{

    #ifdef CAVIUM

    double dLsw;

            *ntpMsw = htonl (((unsigned long)strTv.tv_sec + (unsigned
long)NHNP_RTP_NTPTIMEOFFSET));  //2208992400UL

            dLsw = (double)strTv.tv_usec / 1000000 * 65536 * 65536;

            *ntpLsw = htonl ((unsigned long) dLsw);

    #else

            // TBD

/* Here we have to write code that will work for Linux 2.6 kernel. */

 

    #endif

}

----------------------------------------

My main objective is how to convert the line" dLsw = (double)strTv.tv_usec /
1000000 * 65536 * 65536"  , so that I will get the accurate NTPTime.

I will appreciate if I get help on this regard. Please provide some info on
it.

 

 

Regards,

Jitendra