6 files changed, 6 insertions, 6 deletions

diff --git a/board/matrix_vision/mergerbox/fpga.c b/board/matrix_vision/mergerbox/fpga.c
index 673bc2c95..021e9c4b1 100644
--- a/board/matrix_vision/mergerbox/fpga.c
+++ b/board/matrix_vision/mergerbox/fpga.c
@@ -161,7 +161,7 @@ static inline int _write_fpga(u8 val, int dump)
 	return 0;
 }
 
-int fpga_wr_fn(void *buf, size_t len, int flush, int cookie)
+int fpga_wr_fn(const void *buf, size_t len, int flush, int cookie)
 {
 	unsigned char *data = (unsigned char *) buf;
 	int i;
diff --git a/board/matrix_vision/mergerbox/fpga.h b/board/matrix_vision/mergerbox/fpga.h
index fccff9fbc..89f879a55 100644
--- a/board/matrix_vision/mergerbox/fpga.h
+++ b/board/matrix_vision/mergerbox/fpga.h
@@ -26,5 +26,5 @@ extern int fpga_status_fn(int cookie);
 extern int fpga_config_fn(int assert, int flush, int cookie);
 extern int fpga_done_fn(int cookie);
 extern int fpga_clk_fn(int assert_clk, int flush, int cookie);
-extern int fpga_wr_fn(void *buf, size_t len, int flush, int cookie);
+extern int fpga_wr_fn(const void *buf, size_t len, int flush, int cookie);
 extern int fpga_null_fn(int cookie);
diff --git a/board/matrix_vision/mvbc_p/fpga.c b/board/matrix_vision/mvbc_p/fpga.c
index 3ed46fe80..6ce96ba14 100644
--- a/board/matrix_vision/mvbc_p/fpga.c
+++ b/board/matrix_vision/mvbc_p/fpga.c
@@ -160,7 +160,7 @@ static inline int _write_fpga(u8 val)
 	return 0;
 }
 
-int fpga_wr_fn(void *buf, size_t len, int flush, int cookie)
+int fpga_wr_fn(const void *buf, size_t len, int flush, int cookie)
 {
 	unsigned char *data = (unsigned char *) buf;
 	int i;
diff --git a/board/matrix_vision/mvbc_p/fpga.h b/board/matrix_vision/mvbc_p/fpga.h
index 37230730a..8f74a005c 100644
--- a/board/matrix_vision/mvbc_p/fpga.h
+++ b/board/matrix_vision/mvbc_p/fpga.h
@@ -30,5 +30,5 @@ extern int fpga_status_fn(int cookie);
 extern int fpga_config_fn(int assert, int flush, int cookie);
 extern int fpga_done_fn(int cookie);
 extern int fpga_clk_fn(int assert_clk, int flush, int cookie);
-extern int fpga_wr_fn(void *buf, size_t len, int flush, int cookie);
+extern int fpga_wr_fn(const void *buf, size_t len, int flush, int cookie);
 extern int fpga_null_fn(int cookie);
diff --git a/board/matrix_vision/mvblm7/fpga.c b/board/matrix_vision/mvblm7/fpga.c
index 7b03d6f50..dc5a73874 100644
--- a/board/matrix_vision/mvblm7/fpga.c
+++ b/board/matrix_vision/mvblm7/fpga.c
@@ -172,7 +172,7 @@ static inline int _write_fpga(u8 val, int dump)
 	return 0;
 }
 
-int fpga_wr_fn(void *buf, size_t len, int flush, int cookie)
+int fpga_wr_fn(const void *buf, size_t len, int flush, int cookie)
 {
 	unsigned char *data = (unsigned char *) buf;
 	int i;
diff --git a/board/matrix_vision/mvblm7/fpga.h b/board/matrix_vision/mvblm7/fpga.h
index 19277eb05..f422f20d6 100644
--- a/board/matrix_vision/mvblm7/fpga.h
+++ b/board/matrix_vision/mvblm7/fpga.h
@@ -30,5 +30,5 @@ extern int fpga_status_fn(int cookie);
 extern int fpga_config_fn(int assert, int flush, int cookie);
 extern int fpga_done_fn(int cookie);
 extern int fpga_clk_fn(int assert_clk, int flush, int cookie);
-extern int fpga_wr_fn(void *buf, size_t len, int flush, int cookie);
+extern int fpga_wr_fn(const void *buf, size_t len, int flush, int cookie);
 extern int fpga_null_fn(int cookie);