diff options
| author | Daniel Friesel <derf@finalrewind.org> | 2021-12-25 23:19:33 +0100 |
|---|---|---|
| committer | Daniel Friesel <derf@finalrewind.org> | 2021-12-25 23:19:33 +0100 |
| commit | bf0e6a5eb0dd6ec9ebf1d4fb2cf2f804de946f44 (patch) | |
| tree | def9fe4886bf707160b47c88c1b39ed995eeed50 | |
| parent | d11fc8116e7ccd2663ef911249fc7ecb3429b625 (diff) | |
lm75: overtemperature threshold and hysteresis are _signed_ 8bit ints
| -rw-r--r-- | include/driver/lm75.h | 6 | ||||
| -rw-r--r-- | src/driver/lm75.cc | 6 |
2 files changed, 8 insertions, 4 deletions
diff --git a/include/driver/lm75.h b/include/driver/lm75.h index 357be71..c1a9ddf 100644 --- a/include/driver/lm75.h +++ b/include/driver/lm75.h @@ -2,6 +2,8 @@ * Copyright 2020 Daniel Friesel * * SPDX-License-Identifier: BSD-2-Clause + * + * Driver for LM75B Digital Temperature Sensor and Thermal Watchdog. */ #ifndef LM75_H #define LM75_H @@ -19,8 +21,8 @@ class LM75 { float getTemp(); unsigned int getOS(); unsigned int getHyst(); - void setOS(unsigned char os); - void setHyst(unsigned char hyst); + void setOS(signed char os); + void setHyst(signed char hyst); void init(); void shutdown(); }; diff --git a/src/driver/lm75.cc b/src/driver/lm75.cc index 3fd1483..8aab05d 100644 --- a/src/driver/lm75.cc +++ b/src/driver/lm75.cc @@ -2,6 +2,8 @@ * Copyright 2020 Daniel Friesel * * SPDX-License-Identifier: BSD-2-Clause + * + * Driver for LM75B Digital Temperature Sensor and Thermal Watchdog. */ #include "driver/lm75.h" #if defined(MULTIPASS_ARCH_HAS_I2C) && !defined(CONFIG_driver_softi2c) @@ -40,7 +42,7 @@ unsigned int LM75::getHyst() return rxbuf[0]; } -void LM75::setOS(unsigned char os) +void LM75::setOS(signed char os) { txbuf[0] = 0x03; txbuf[1] = os; @@ -48,7 +50,7 @@ void LM75::setOS(unsigned char os) i2c.xmit(address, 3, txbuf, 0, rxbuf); } -void LM75::setHyst(unsigned char hyst) +void LM75::setHyst(signed char hyst) { txbuf[0] = 0x02; txbuf[1] = hyst; |