maxim/gpio-reader
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#16

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This commit is contained in:
mstroh76
2024-01-27 16:38:26 +01:00
parent eae109e6f8
commit d1df517fa3
1 changed files with 5 additions and 5 deletions
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10
gpio/gpio.c
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@@ -88,10 +88,10 @@ char *usage = "Usage: gpio -v\n"
" gpio gbw <channel> <value>" ; // No trailing newline needed here. " gpio gbw <channel> <value>" ; // No trailing newline needed here.
int GPIOToSysFS_ExitonFail (const int pin) { int GPIOToSysFS_ExitonFail (const int pin, const char* name) {
int pinFS = GPIOToSysFS(pin); int pinFS = GPIOToSysFS(pin);
if (pinFS<0) { if (pinFS<0) {
fprintf (stderr, "%s: invalid sysfs pin of bcm pin %d\n", argv [0], pin) ; fprintf (stderr, "%s: invalid sysfs pin of bcm pin %d\n", name, pin) ;
exit (1) ; exit (1) ;
} }
return pinFS; return pinFS;
@@ -501,7 +501,7 @@ void doExport (int argc, char *argv [])
} }
pin = atoi (argv [2]) ; pin = atoi (argv [2]) ;
int pinFS = GPIOToSysFS_ExitonFail(pin); int pinFS = GPIOToSysFS_ExitonFail(pin, argv [0]);
mode = argv [3] ; mode = argv [3] ;
if ((fd = fopen ("/sys/class/gpio/export", "w")) == NULL) if ((fd = fopen ("/sys/class/gpio/export", "w")) == NULL)
@@ -614,7 +614,7 @@ void doEdge (int argc, char *argv [])
} }
pin = atoi (argv [2]) ; pin = atoi (argv [2]) ;
int pinFS = GPIOToSysFS_ExitonFail(pin); int pinFS = GPIOToSysFS_ExitonFail(pin, argv [0]);
mode = argv [3] ; mode = argv [3] ;
// Export the pin and set direction to input // Export the pin and set direction to input
@@ -686,7 +686,7 @@ void doUnexport (int argc, char *argv [])
} }
pin = atoi (argv [2]) ; pin = atoi (argv [2]) ;
int pinFS = GPIOToSysFS_ExitonFail(pin); int pinFS = GPIOToSysFS_ExitonFail(pin, argv [0]);
if ((fd = fopen ("/sys/class/gpio/unexport", "w")) == NULL) if ((fd = fopen ("/sys/class/gpio/unexport", "w")) == NULL)
{ {