Add scan command for wifi AP scanning

README.md

@@ -17,6 +17,7 @@ Command can be:
 - `off`: turn the power off
 - `reboot`: reboot the plug
 - `reset-yes-really`: factory reset the plug
+- `scan`: scan for nearby wifi APs (probably only 2.4 GHz ones)
 - Alternatively, you can supply a JSON string to be sent directly to the
 device. Note that the JSON string must be quoted, like so:
 `hs100 <ip> '{"system":{"set_relay_state":{"state":1}}}'`

hs100.c

@@ -33,6 +33,12 @@ struct cmd_s cmds[] = {
 		.help = "reboot\t\treboot the plug",
 		.json = "{\"system\":{\"reboot\":{\"delay\":0}}}",
 	},
+	{
+		.command = "scan",
+		.help = "scan\t\tscan for nearby wifi APs (probably only 2.4"
+			" GHz ones)",
+		.json = "{\"netif\":{\"get_scaninfo\":{\"refresh\":1}}}",
+	},
 	{
 		.end = 1,
 	},