~pegro/+junk/rtcwakealarm

Viewing changes to ioctlexample.py

initial import

added added

removed removed

#!/usr/bin/env python

import fcntl, struct, os

# Representing

# struct rtc_time {

# int tm_sec;

# int tm_min;

# int tm_hour;

# int tm_mday;

# int tm_mon;

# int tm_year;

# int tm_wday;

# int tm_yday;

# int tm_isdst;

# };

# as Python struct.

a=struct.pack('iiiiiiiii', 0,0,0,0,0,0,0,0,0)

fo=open('/dev/rtc')

RTC_RD_TIME=0x80247009

input=fcntl.ioctl(fo.fileno(), RTC_RD_TIME, a)

result=struct.unpack('iiiiiiiii', input)

print "RTC time: " + str(result[2]) + ":" + str(result[1]) + ":" + str(result[0])