diff --git a/chipdrivers.h b/chipdrivers.h
index 958c59a..2746e52 100644
--- a/chipdrivers.h
+++ b/chipdrivers.h
@@ -58,6 +58,12 @@
 int spi_write_chunked(struct flashchip *flash, uint8_t *buf, int start, int len, int chunksize);
 int spi_aai_write(struct flashchip *flash, uint8_t *buf, int start, int len);
 
+/* opaque.c */
+int probe_opaque(struct flashchip *flash);
+int read_opaque(struct flashchip *flash, uint8_t *buf, int start, int len);
+int write_opaque(struct flashchip *flash, uint8_t *buf, int start, int len);
+int erase_opaque(struct flashchip *flash, unsigned int blockaddr, unsigned int blocklen);
+
 /* a25.c */
 int spi_prettyprint_status_register_amic_a25l05p(struct flashchip *flash);
 int spi_prettyprint_status_register_amic_a25l40p(struct flashchip *flash);