Host-detecting USB hub

An apparatus, comprising:

• a processor;
• a non-transitory machine-readable medium coupled to the processor and comprising instructions, the instructions, when loaded into the processor and executed, configure the processor to:
• identify that a first USB element has attached to a USB hub at a first port;
• classify the first USB element according to power operations of the first USB element;
• assign an upstream or downstream setting of the first port based upon the classification of the first USB element based on power operations of the first USB element;
• classify the first USB element as only a producer of power;
• based on the classification of the first USB element as only a producer of power, evaluate whether an enumeration process is initiated within a timeout period;
• and
• based on a determination that the enumeration process is not initiated within the timeout period, assign the first USB element as a USB device.

An apparatus, comprising:

• a processor;
• a non-transitory machine-readable medium coupled to the processor and comprising instructions, the instructions, when loaded into the processor and executed, configure the processor to:
• identify that a first USB element has attached to a USB hub at a first port;
• classify the first USB element according to power operations of the first USB element;
• assign an upstream or downstream setting of the first port based upon the classification of the first USB element based on power operations of the first USB element;
• classify the first USB element as only a producer of power;
• based on the classification of the first USB element as only a producer of power, evaluate whether an enumeration process is initiated within a timeout period;
• and
• based on a determination that the enumeration process is not initiated within the timeout period, handle attachment of the first USB element as a power adapter.

A method, comprising:

• identifying that a first USB element has attached to a USB hub at a first port;
• classifying the first USB element according to power operations of the first USB element;
• assigning an upstream or downstream setting of the first port based upon the classification of the first USB element based on power operations of the first USB element;
• classifying the first USB element as only a producer of power;
• based on the classification of the first USB element as only a producer of power, evaluating whether an enumeration process is initiated within a timeout period;
• and
• based on a determination that the enumeration process is initiated within the timeout period, assigning the first USB element as a USB host.

A method, comprising:

• identifying that a first USB element has attached to a USB hub at a first port;
• classifying the first USB element according to power operations of the first USB element;
• assigning an upstream or downstream setting of the first port based upon the classification of the first USB element based on power operations of the first USB element;
• classifying the first USB element as only a producer of power;
• based on the classification of the first USB element as only a producer of power, evaluating whether an enumeration process is initiated within a timeout period;
• and
• based on a determination that the enumeration process is not initiated within the timeout period, assigning the first USB element as a USB device.

A method, comprising:

• identifying that a first USB element has attached to a USB hub at a first port;
• classifying the first USB element according to power operations of the first USB element;
• assigning an upstream or downstream setting of the first port based upon the classification of the first USB element based on power operations of the first USB element;
• classifying the first USB element as only a producer of power;
• based on the classification of the first USB element as only a producer of power, evaluating whether an enumeration process is initiated within a timeout period;
• and
• based on a determination that the enumeration process is not initiated within the timeout period, handling attachment of the first USB element as a power adapter.

A method, comprising:

• identifying that a USB element has attached to a USB hub at a port;
• determining power operations of the USB element;
• classifying the USB element according to power operations of the USB element;
• determining whether to operate the port in either upstream operation or downstream operation based on the determination of the power operations of the USB element;
• assigning a setting defining whether the port uses either upstream or downstream operation based upon the classification of the USB element based on the determination of power operations of the USB element;
• classifying the USB element as only a producer of power;
• based on the classification of the USB element as only a producer of power, evaluating whether an enumeration process is initiated within a timeout period;
• and
• based on a determination that the enumeration process is initiated within the timeout period, setting the port as an upstream port.

A method, comprising:

• identifying that a USB element has attached to a USB hub at a port;
• determining power operations of the USB element;
• classifying the USB element according to power operations of the USB element;
• determining whether to operate the port in either upstream operation or downstream operation based on the determination of the power operations of the USB element;
• assigning a setting defining whether the port uses either upstream or downstream operation based upon the classification of the USB element based on the determination of power operations of the USB element;
• classifying the USB element as only a producer of power;
• based on the classification of the USB element as only a producer of power, evaluating whether an enumeration process is initiated within a timeout period;
• and
• based on a determination that the enumeration process is not initiated within the timeout period, setting the port as a downstream port.