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-rw-r--r--extmod/modbluetooth.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/extmod/modbluetooth.h b/extmod/modbluetooth.h
index fc7012ecf..6fe8d66ed 100644
--- a/extmod/modbluetooth.h
+++ b/extmod/modbluetooth.h
@@ -391,7 +391,7 @@ int mp_bluetooth_gattc_discover_descriptors(uint16_t conn_handle, uint16_t start
int mp_bluetooth_gattc_read(uint16_t conn_handle, uint16_t value_handle);
// Write the value to the remote peripheral.
-int mp_bluetooth_gattc_write(uint16_t conn_handle, uint16_t value_handle, const uint8_t *value, size_t *value_len, unsigned int mode);
+int mp_bluetooth_gattc_write(uint16_t conn_handle, uint16_t value_handle, const uint8_t *value, size_t value_len, unsigned int mode);
// Initiate MTU exchange for a specific connection using the preferred MTU.
int mp_bluetooth_gattc_exchange_mtu(uint16_t conn_handle);