/usb/ and $ret .= "\tselect USB_SUPPORT\n";
/usbgadget/ and $ret .= "\tselect USB_GADGET_SUPPORT\n";
/pcmcia/ and $ret .= "\tselect PCMCIA_SUPPORT\n";
+ /rtc/ and $ret .= "\tselect RTC_SUPPORT\n";
/squashfs/ and $ret .= "\tselect USES_SQUASHFS\n";
/jffs2/ and $ret .= "\tselect USES_JFFS2\n";
/ext4/ and $ret .= "\tselect USES_EXT4\n";