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Merge "vibrator: fix issue with ledtrig-transient support"

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am: 60849b8da4

Change-Id: I539a36cf4b0ec0d991fefae22f0e65d68704da8f
This commit is contained in:
David Lin 2017-03-11 01:28:11 +00:00 committed by android-build-merger
commit 95d22ed018
1 changed files with 14 additions and 6 deletions
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20
modules/vibrator/vibrator.c
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@ -32,16 +32,20 @@
static const char THE_DEVICE[] = "/sys/class/timed_output/vibrator/enable";
static int vibra_exists() {
static bool device_exists(const char *file) {
int fd;
fd = TEMP_FAILURE_RETRY(open(THE_DEVICE, O_RDWR));
fd = TEMP_FAILURE_RETRY(open(file, O_RDWR));
if(fd < 0) {
return 0;
return false;
}
close(fd);
return 1;
return true;
}
static bool vibra_exists() {
return device_exists(THE_DEVICE);
}
static int write_value(const char *file, const char *value)
@ -102,9 +106,13 @@ static int write_led_file(const char *file, const char *value)
return write_value(file_str, value);
}
static int vibra_led_exists()
static bool vibra_led_exists()
{
return !write_led_file("trigger", "transient");
int fd;
char file_str[50];
snprintf(file_str, sizeof(file_str), "%s/%s", LED_DEVICE, "activate");
return device_exists(file_str);
}
static int vibra_led_on(vibrator_device_t* vibradev __unused, unsigned int timeout_ms)