center-3xx: use common signed LE16 conversion for temperature value

[libsigrok.git] / src / hardware / center-3xx / protocol.c

diff --git a/src/hardware/center-3xx/protocol.c b/src/hardware/center-3xx/protocol.c
index 81868b0618aa141f8702bdea993eac3a8fe96110..196e29de076dc7f96d31b40b736eacdff945498d 100644 (file)
--- a/src/hardware/center-3xx/protocol.c
+++ b/src/hardware/center-3xx/protocol.c
@@ -64,7 +64,7 @@ static void log_packet(const uint8_t *buf, int idx)
 static int packet_parse(const uint8_t *buf, int idx, struct center_info *info)
 {
        int i;
-       uint16_t temp_u16;
+       int16_t temp_i16;
 
        log_packet(buf, idx);
 
@@ -89,9 +89,8 @@ static int packet_parse(const uint8_t *buf, int idx, struct center_info *info)
 
        /* Byte 7+8/9+10/11+12/13+14: channel T1/T2/T3/T4 temperature. */
        for (i = 0; i < NUM_CHANNELS; i++) {
-               temp_u16 = buf[8 + (i * 2)];
-               temp_u16 |= ((uint16_t)buf[7 + (i * 2)] << 8);
-               info->temp[i] = (float)temp_u16;
+               temp_i16 = RL16S(&buf[7 + 2 * i]);
+               info->temp[i] = (float)temp_i16;
        }
 
        /* Byte 43: Specifies whether we need to divide the value(s) by 10. */