During GPIO initialization the pin state flips and triggers a reset of
the ledbar MCU. It needs to be moved through an initialization sequence
before working correctly.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Some versions of the ledbar MCU have a reset pin. It needs to be
correctly initialized or we might keep the MCU in reset state.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Or the comparison against a signed char is always true, because the
literal 0xaa is treated as an unsigned int, to which the signed char is
casted during comparison. 0xaa is above the positive values of a signed
char and negative signed char values result in values larger than 0xaa
when casted to unsigned int.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
The read response is in the i2c_response variable. Also use %hhx format,
because we're dealing with a single char.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
