udev: Add SIMCOM SIM900 detection support

This allows for detection of SIM900 modem module in case
of appropriate driver specified in udev rules.

Example rule:
KERNEL=="gsmtty3", ENV{OFONO_DRIVER}="sim900"

diff --git a/plugins/udev.c b/plugins/udev.c
index 79027d7..8cb87a5 100644 (file)
--- a/plugins/udev.c
+++ b/plugins/udev.c
@@ -193,6 +193,19 @@ static void add_nokiacdma(struct ofono_modem *modem,
        ofono_modem_register(modem);
 }
 
+static void add_sim900(struct ofono_modem *modem,
+                                       struct udev_device *udev_device)
+{
+       const char *devnode;
+
+       DBG("modem %p", modem);
+
+       devnode = udev_device_get_devnode(udev_device);
+       ofono_modem_set_string(modem, "Device", devnode);
+
+       ofono_modem_register(modem);
+}
+
 static void add_modem(struct udev_device *udev_device)
 {
        struct ofono_modem *modem;
@@ -271,6 +284,8 @@ done:
                add_tc65(modem, udev_device);
        else if (g_strcmp0(driver, "nokiacdma") == 0)
                add_nokiacdma(modem, udev_device);
+       else if (g_strcmp0(driver, "sim900") == 0)
+               add_sim900(modem, udev_device);
 }
 
 static gboolean devpath_remove(gpointer key, gpointer value, gpointer user_data)