}
-gboolean muxer_control_alloc_channel (MuxerControl* self, const char* origin, const char* channel, GError** error) {
+gboolean muxer_control_alloc_channel (MuxerControl* self, const char* origin, const char** channel, GError** error) {
g_return_val_if_fail (IS_MUXER_CONTROL (self), FALSE);
g_return_val_if_fail (origin != NULL, FALSE);
g_return_val_if_fail (channel != NULL, FALSE);
gboolean muxer_control_reset_modem (MuxerControl* self, const char* origin);
gboolean muxer_control_set_power (MuxerControl* self, const char* origin, gboolean on);
gboolean muxer_control_get_power (MuxerControl* self, const char* origin, gboolean on);
-gboolean muxer_control_alloc_channel (MuxerControl* self, const char* origin, const char* channel, GError** error);
+gboolean muxer_control_alloc_channel (MuxerControl* self, const char* origin, const char** channel, GError** error);
MuxerControl* muxer_control_gen (void);
MuxerControl* muxer_control_new (void);
GType muxer_control_get_type (void);