1 files changed, 1 insertions, 1 deletions

diff --git a/firmware/target/mips/ingenic_jz47xx/i2c-jz4740.c b/firmware/target/mips/ingenic_jz47xx/i2c-jz4740.c
index 1cdcb639bc..dadea65599 100644
--- a/firmware/target/mips/ingenic_jz47xx/i2c-jz4740.c
+++ b/firmware/target/mips/ingenic_jz47xx/i2c-jz4740.c
@@ -187,7 +187,7 @@ L_timeout:
     return -1;
 }
 
-int i2c_write(int device, unsigned char *buf, int count)
+int i2c_write(int device, const unsigned char *buf, int count)
 {
     int cnt = count;
     int timeout = 5;