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we need to pass back the rtc device name that was actually used so that we can turn around and check its sysfs status

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This commit is contained in:
Mike Frysinger 2008-02-15 07:19:03 +00:00
parent ea915363e7
commit 977bc6a137
4 changed files with 17 additions and 15 deletions
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2
include/rtc_.h
View File

@ -10,7 +10,7 @@
#include "libbb.h"
extern int rtc_adjtime_is_utc(void);
extern int rtc_xopen(const char *default_rtc, int flags);
extern int rtc_xopen(const char **default_rtc, int flags);
extern time_t rtc_read_time(int fd, int utc);

14
libbb/rtc.c
View File

@ -40,21 +40,23 @@ int rtc_adjtime_is_utc(void)
return utc;
}
int rtc_xopen(const char *default_rtc, int flags)
int rtc_xopen(const char **default_rtc, int flags)
{
int rtc;
if (!default_rtc) {
rtc = open("/dev/rtc", flags);
if (!*default_rtc) {
*default_rtc = "/dev/rtc";
rtc = open(*default_rtc, flags);
if (rtc >= 0)
return rtc;
rtc = open("/dev/rtc0", flags);
*default_rtc = "/dev/rtc0";
rtc = open(*default_rtc, flags);
if (rtc >= 0)
return rtc;
default_rtc = "/dev/misc/rtc";
*default_rtc = "/dev/misc/rtc";
}
return xopen(default_rtc, flags);
return xopen(*default_rtc, flags);
}
time_t rtc_read_time(int fd, int utc)

4
util-linux/hwclock.c
View File

@ -25,7 +25,7 @@ static time_t read_rtc(int utc)
time_t ret;
int fd;
fd = rtc_xopen(rtcname, O_RDONLY);
fd = rtc_xopen(&rtcname, O_RDONLY);
ret = rtc_read_time(fd, utc);
close(fd);
@ -35,7 +35,7 @@ static time_t read_rtc(int utc)
static void write_rtc(time_t t, int utc)
{
struct tm tm;
int rtc = rtc_xopen(rtcname, O_WRONLY);
int rtc = rtc_xopen(&rtcname, O_WRONLY);
tm = *(utc ? gmtime(&t) : localtime(&t));
tm.tm_isdst = 0;

12
util-linux/rtcwake.c
View File

@ -45,7 +45,7 @@ static int may_wakeup(const char *rtcname)
return 0;
/* wakeup events could be disabled or not supported */
return strcmp(buf, "enabled\n") == 0;
return strncmp(buf, "enabled\n", 8) == 0;
}
static void setup_alarm(int fd, time_t *wakeup)
@ -159,11 +159,11 @@ int rtcwake_main(int argc, char **argv)
/* the rtcname is relative to /dev */
xchdir("/dev");
if (strcmp(suspend, "on") != 0 && !may_wakeup(rtcname))
bb_error_msg_and_die("%s not enabled for wakeup events", rtcname);
/* this RTC must exist and (if we'll sleep) be wakeup-enabled */
fd = rtc_xopen(rtcname, O_RDONLY);
fd = rtc_xopen(&rtcname, O_RDONLY);
if (strcmp(suspend, "on") && !may_wakeup(rtcname))
bb_error_msg_and_die("%s not enabled for wakeup events", rtcname);
/* relative or absolute alarm time, normalized to time_t */
sys_time = time(0);
@ -184,7 +184,7 @@ int rtcwake_main(int argc, char **argv)
fflush(stdout);
usleep(10 * 1000);
if (!strcmp(suspend, "on"))
if (strcmp(suspend, "on"))
suspend_system(suspend);
else {
/* "fake" suspend ... we'll do the delay ourselves */