Linux/TUSB3410: In USB to I2C Mode, is the device detected as a I2C Controller?

Sebastian M

Part Number: TUSB3410

Tool/software: Linux

Hi,

is the device detected as I2C Controller or as some virtual COM Port or how can i communicate with it under Linux when it is used as USB to I2C bridge?

We need to communicate with a custom Front Panel that has an I2C bus interface. It is connected to a PC / Server Board and the internal I2C Busses are not accessible. So we thought this USB to I2C bridge could be used to add another I2C interface / controller. Ideally the linux i2c-tools can be directly used (i.e. i2cdetect, i2cget, ...).

Best Regards,

Sebastian

over 5 years ago

0 Malik Barton57 over 5 years ago

TI__Guru 64326 points

Hi,

We will look into this and get back to you.

0 Nicholaus_Malone over 5 years ago

TI__Mastermind 26050 points

Hi Sebastian,

The TUSB3410 can operate as either an I2C device or a UART device.

In order for it to operate as an I2C device, the I2C Firmware must be loaded, and it must be using a HID driver.

In order to use it as a UART device, you must use the VCP driver.

There is nothing that would prevent you from using Linux; however, based on my limited understanding of i2c-tools, they are meant to interact directly with an I2C bus. The TUSB3410 can read/write to an I2C Bus via USB HID commands, but it can't be controlled via I2C.

Regards,

0 Nicholaus_Malone over 5 years ago

TI__Mastermind 26050 points

Hi Sebastian,

Did this answer your question? Please mark as resolved if so.

Thanks,

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Linux/TUSB3410: In USB to I2C Mode, is the device detected as a I2C Controller?