Linux/TUSB9261: Need to set GPIO10 to control power of hard disk but don't know how to set

Henry Li78

Part Number: TUSB9261

Tool/software: Linux

Dears:

I want to use GPIO10 of TUSB9261 to check if this chip has any Data input or output.

If there is no input or output ,I want to let GPIO10 output a low voltage signal to help me cotrol the power of the sata disk.

But I don't know how to customer firmware to set GPIO 10 fucntion ,it 's always a high voltage output.

over 8 years ago

0 Roberto Diaz over 8 years ago

TI__Genius 11255 points

Hello Henry,

We are taking a look at our current configuration to very if this is supported by default.
Regards,
Roberto

0 Maka Luo over 8 years ago in reply to Roberto Diaz

TI__Intellectual 1125 points

Hi Roberto,

Do you have user guide to how to set GPIO10, can we open the source code to customer? wait for your feedback as soon as possible. thanks!

0 Roberto Diaz over 8 years ago in reply to Maka Luo

TI__Genius 11255 points

Hello,

We need to know if switch is active high or low to create a FW that fulfill this requirement. could you please provide us this information?

Regards,
Roberto

0 Henry Li78 over 8 years ago in reply to Roberto Diaz

Prodigy 205 points

Hi Roberto:
It's better if we could set them through our MCU.
Regards ,
Henry

0 Brian Quach over 8 years ago

TI__Expert 4325 points

With the specific FW, GPIO10 controls SATA drive power when operating as USB bus-powered device. It will enable SATA power when USB is in configured state and will stay enabled until the device is unplugged. It does not tell you if there is data input or output. Basically, GPIO10 can only be used as an indication of USB configured state.

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Linux/TUSB9261: Need to set GPIO10 to control power of hard disk but don't know how to set