rem: proc = g_build_filename (G_DIR_SEPARATOR_S, "/proc/video/dev", name, NULL);
add: proc = g_build_filename ("/proc/video/dev", name, NULL);
context: linux_add_video_dev (const char *name){	VideoDev *dev;	char *proc;	char **lines, *tmp, *filename;	filename = linux_get_device_path (name);	if (filename == NULL) {		return NULL;	}	proc = g_build_filename (G_DIR_SEPARATOR_S,			"/proc/video/dev", name, NULL);	lines = read_lines (proc);	g_free (proc);	if (lines == NULL) {		return NULL;	}	if (g_str_has_prefix (lines[0], "name") == FALSE) {		g_strfreev (lines);		return NULL;	}	tmp = strstr (lines[0], ":");	if (tmp == NULL || tmp + 1 == NULL || tmp + 2 == NULL) {		g_strfreev (lines);		return NULL;	}	dev = g_new0 (VideoDev, 1);	dev->display_name = g_strdup (tmp+2);	dev->device = filename;	g_strfreev (lines);	return dev;}