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-rw-r--r--src/device/protocol_device.ino2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/device/protocol_device.ino b/src/device/protocol_device.ino
index 218ca85..22e1be1 100644
--- a/src/device/protocol_device.ino
+++ b/src/device/protocol_device.ino
@@ -30,7 +30,7 @@ int clear_data(cd_t cd)
return ret;
}
-static int push_bytes(cd_t cd, char *data, size_t size)
+static int push_bytes(cd_t cd, const char *data, size_t size)
{
int ret = 0;