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Merge pull request #13 from khumarahn/master

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teres1-ledctrl: check for more possible errors
This commit is contained in:
Chris Boudacoff 2017-11-22 13:07:05 +02:00 committed by GitHub
commit eedc61f074
Signed by: GitHub
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 29 additions and 24 deletions
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23
SOFTWARE/A64-TERES/teres1-ledctrl/teres1-ledctrl.c
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@ -15,6 +15,8 @@
#include <fcntl.h> #include <fcntl.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <linux/input.h> #include <linux/input.h>
@ -69,17 +71,14 @@ int main (int argc, char **argv)
device = argv[1]; device = argv[1];
if((fd = open(device, O_RDONLY)) == -1) for (;;)
{
if((fd = open(device, O_RDONLY)) != -1)
{ {
perror("Could not open input device");
exit(255);
}
export_gpio(LED_NUM); export_gpio(LED_NUM);
export_gpio(LED_CAPS); export_gpio(LED_CAPS);
while(read(fd, &ie, sizeof(struct input_event)) > 0)
while(read(fd, &ie, sizeof(struct input_event)))
{ {
switch (ie.type) switch (ie.type)
{ {
@ -97,6 +96,12 @@ int main (int argc, char **argv)
break; break;
} }
} }
}
return 0;
// something went wrong: rinse and repeat
close(fd);
usleep(65535u);
}
return 0; // never
} }