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smbus return with error if failed transfer

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bazooka joe 2020-03-17 10:59:08 -07:00 committed by Beat Küng
parent 6d654cb50b
commit 53bc5fddad
1 changed files with 4 additions and 0 deletions
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4
src/lib/drivers/smbus/SMBus.cpp
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@ -98,6 +98,10 @@ int SMBus::block_read(const uint8_t cmd_code, void *data, const uint8_t length,
int result = transfer(&cmd_code, 1, (uint8_t *)&rx_data[3], length + 2);
if (result != PX4_OK) {
return result;
}
uint8_t device_address = get_device_address();
rx_data[0] = (device_address << 1) | 0x00;
rx_data[1] = cmd_code;