Add log message when sending inputsvisu

1 files changed, 2 insertions, 1 deletions

diff --git a/src/program/Serial.cpp b/src/program/Serial.cpp
index 4a3798e9..f4ad6ed5 100644
--- a/src/program/Serial.cpp
+++ b/src/program/Serial.cpp
@@ -208,7 +208,8 @@ int sendInputsSerial(int fd, const AllInputs& ai, const AllInputs& prev_ai)
             }
 
             /* Send inputs */
-            char wcmd[3] = {0x0f, static_cast<char>(buttons >> 8), static_cast<char>(buttons & 0xff)};
+            unsigned char wcmd[3] = {0x0f, static_cast<unsigned char>(buttons >> 8), static_cast<unsigned char>(buttons & 0xff)};
+            std::cerr << "--- Sending input bytes " << std::hex << (unsigned int)wcmd[0] << " " << (unsigned int)wcmd[1] << " " << (unsigned int)wcmd[2] << std::endl;
             int wlen = write(fd, &wcmd, 3);
             if (wlen != 3) {
                 std::cerr << "!!! Could not write inputs to device:" << strerror(errno) << std::endl;