Hi everyone,

I'm using BBxM Rev C2 board and trying to read gpio pins. But I have some 
trouble about it. I successfully read 
*gpio139/MMC2_DAT7/MMC2_CLKIN/MMC3_DAT3/HSUSB3_TLL_NXT/MM3_RXDM*   but when 
I tried to read 
*GPIO_156/**McBSP1_CLKR/McSPI4_CLK/SIM_CD *or another pin like 
*McSPI1_CS0/GPIO_174 
 *I'm not able to success to read pins. 
So I think that pins have different feature so I need to change this. 

   cd /sys/class/gpio/
   echo 159 > export 
   cd /sys/class/gpio/gpio159
   echo "in" > direction 
   cat value   

for GPIO 139 is working but the others always value is ZERO .


Has any idea about change pin features...

Best Regards. 

  

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