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If no "B" parameter given, get 1 byte

Scott Lahteine 9 years ago
parent
commit
aaeadf0cbd
1 changed files with 1 additions and 1 deletions
  1. 1
    1
      Marlin/Marlin_main.cpp

+ 1
- 1
Marlin/Marlin_main.cpp View File

@@ -5038,7 +5038,7 @@ inline void gcode_M121() { endstops.enable_globally(false); }
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    */
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   inline void gcode_M156() {
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     uint8_t addr = code_seen('A') ? code_value_short() : 0;
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-    int bytes    = code_seen('B') ? code_value_short() : 0;
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+    int bytes    = code_seen('B') ? code_value_short() : 1;
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     if (addr && bytes > 0 && bytes <= 32) {
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       i2c.address(addr);

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