davids5 commented on code in PR #8456:
URL: https://github.com/apache/nuttx/pull/8456#discussion_r1100249905
##########
drivers/ioexpander/gpio.c:
##########
@@ -596,6 +596,64 @@ int gpio_pin_register(FAR struct gpio_dev_s *dev, int
minor)
return register_driver(devname, &g_gpio_drvrops, 0666, dev);
}
+/****************************************************************************
+ * Name: gpio_pin_register_byname
Review Comment:
Done
##########
drivers/ioexpander/gpio.c:
##########
@@ -596,6 +596,64 @@ int gpio_pin_register(FAR struct gpio_dev_s *dev, int
minor)
return register_driver(devname, &g_gpio_drvrops, 0666, dev);
}
+/****************************************************************************
+ * Name: gpio_pin_register_byname
+ *
+ * Description:
+ * Register GPIO pin device driver by it's name.
+ *
+ ****************************************************************************/
+
+int gpio_pin_register_byname(FAR struct gpio_dev_s *dev,
+ FAR const char *pinname)
+{
+ char devname[32];
+ int ret;
+
+ DEBUGASSERT(dev != NULL && dev->gp_ops != NULL && pinname != NULL);
+
+ switch (dev->gp_pintype)
+ {
+ case GPIO_INPUT_PIN:
+ case GPIO_INPUT_PIN_PULLUP:
+ case GPIO_INPUT_PIN_PULLDOWN:
+ {
+ DEBUGASSERT(dev->gp_ops->go_read != NULL);
+ }
+ break;
+
+ case GPIO_OUTPUT_PIN:
+ case GPIO_OUTPUT_PIN_OPENDRAIN:
+ {
+ DEBUGASSERT(dev->gp_ops->go_read != NULL &&
+ dev->gp_ops->go_write != NULL);
+ }
+ break;
+
+ default:
+ {
+ DEBUGASSERT(dev->gp_ops->go_read != NULL &&
+ dev->gp_ops->go_attach != NULL &&
+ dev->gp_ops->go_enable != NULL);
+
+ /* Make sure that the pin interrupt is disabled */
+
+ ret = dev->gp_ops->go_enable(dev, false);
+ if (ret < 0)
+ {
+ return ret;
+ }
+ }
+ break;
+ }
+
+ snprintf(devname, 32, "/dev/%s", pinname);
Review Comment:
Done
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