diff options
Diffstat (limited to 'gpio.c')
| -rw-r--r-- | gpio.c | 22 |
1 files changed, 13 insertions, 9 deletions
@@ -33,12 +33,14 @@ #define SYSFS_GPIO "/sys/class/gpio" +#define MAX_VALUE_BYTE 10 + struct gpio_info { bool expanded; int active_low; int value; - int direction; - int edge; + char direction[MAX_VALUE_BYTE]; + char edge[MAX_VALUE_BYTE]; char *prefix; } *gpios_info; @@ -51,6 +53,8 @@ static struct gpio_info *gpio_alloc(void) gi = malloc(sizeof(*gi)); if (gi) { memset(gi, -1, sizeof(*gi)); + memset(gi->direction, 0, MAX_VALUE_BYTE); + memset(gi->edge, 0, MAX_VALUE_BYTE); gi->prefix = NULL; } @@ -89,8 +93,8 @@ static inline int read_gpio_cb(struct tree *t, void *data) file_read_value(t->path, "active_low", "%d", &gpio->active_low); file_read_value(t->path, "value", "%d", &gpio->value); - file_read_value(t->path, "edge", "%d", &gpio->edge); - file_read_value(t->path, "direction", "%d", &gpio->direction); + file_read_value(t->path, "edge", "%8s", &gpio->edge); + file_read_value(t->path, "direction", "%4s", &gpio->direction); return 0; } @@ -150,11 +154,11 @@ static int dump_gpio_cb(struct tree *t, void *data) if (gpio->value != -1) printf(", value:%d", gpio->value); - if (gpio->edge != -1) - printf(", edge:%d", gpio->edge); + if (gpio->edge[0] != 0) + printf(", edge:%s", gpio->edge); - if (gpio->direction != -1) - printf(", direction:%d", gpio->direction); + if (gpio->direction[0] != 0) + printf(", direction:%s", gpio->direction); printf(" )\n"); @@ -183,7 +187,7 @@ static char *gpio_line(struct tree *t) struct gpio_info *gpio = t->private; char *gpioline; - if (asprintf(&gpioline, "%-20s %-10d %-10d %-10d %-10d", t-> name, + if (asprintf(&gpioline, "%-20s %-10d %-10d %-10s %-10s", t->name, gpio->value, gpio->active_low, gpio->edge, gpio->direction) < 0) return NULL; |