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-rw-r--r--main/sock.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/main/sock.h b/main/sock.h
index 2a73418..f2db35d 100644
--- a/main/sock.h
+++ b/main/sock.h
@@ -6,6 +6,6 @@
/** \brief start listening for TCP socket requests */
void serve_task();
-void i2c_send(uint16_t addr, char* data, size_t data_size);
-void i2c_recv(uint16_t addr, char* data, size_t data_size);
+void i2c_send(uint16_t addr, const char * data, size_t data_size);
+void i2c_recv(uint16_t addr, const char * data, size_t data_size);