Merge pull request #3 from lkolbly/master

Don't enable SPI bus when SPI mode is disabled.

Author: nseidle

src/MPU9250.cpp

@@ -209,7 +209,7 @@ void MPU9250::initAK8963(float * destination)
  writeByte(AK8963_ADDRESS, AK8963_CNTL, Mscale << 4 | Mmode);
  delay(10);
 
- if(_csPin == NOT_SPI)
+ if(_csPin != NOT_SPI)
  {
  setupMagForSPI();
  }
@@ -291,7 +291,7 @@ void MPU9250::initMPU9250()
  writeByte(_I2Caddr, INT_ENABLE, 0x01);
  delay(100);
 
- if(_csPin == NOT_SPI)
+ if(_csPin != NOT_SPI)
  {
  setupMagForSPI();
  }