TUSB8044RGCEVM: Just to clarify

Anderson Takemoto85

Prodigy 30 points

Part Number: TUSB8044RGCEVM

Is the TUSB8044RGCEVM can switch the ports on demand using some software or command? If yes, wich software need to use?

Thank you

over 7 years ago

0 Elias Villegas M. over 7 years ago

TI__Guru* 76130 points

Hello,
I'm sorry, I don't understand your question, what do you mean by "...switch ports..."
Regards

0 Anderson Takemoto85 over 7 years ago in reply to Elias Villegas M.

Prodigy 30 points

For example, I have one PC connected with 4 cellphones, but I just want to connect with one cellphone, so I need to turn off (VBUS and data) of other 3 connections by command using this same PC.

0 Elias Villegas M. over 7 years ago in reply to Anderson Takemoto85

TI__Guru* 76130 points

Hello,
You can use I2C or SMBUS to disable the downstream ports you want, this can be done only at power-up, if you want to enable back some ports you will have to make a power cycle and re-load the desired configuration.
If you want to make it "on the fly" you will have to modify the USB Driver on your PC in order to send the "power off" commend to the Hub.
Regards

0 Anderson Takemoto85 over 7 years ago in reply to Elias Villegas M.

Prodigy 30 points

Do you think is easy to do? ("modify the USB Driver on your PC in order to send the "power off" (and "power on")")

0 Elias Villegas M. over 7 years ago in reply to Anderson Takemoto85

TI__Guru* 76130 points

No, I wouldn't recommend to make your own USB driver version. I would use a USB switch to physically disconnect the desired USB ports.
You can find such products here
www.ti.com/.../usb-switch-products.page

Regards

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TUSB8044RGCEVM: Just to clarify