Device connect detection
AssigneeIntel Corporation
InventorsHuimin CHEN, Kok Hong CHAN
Life of this patent
Estimating the term…
Abstract
Systems and methods for detecting Input/Output (I/O) device connection are described herein. The method includes physically coupling an I/O device to a host port through a first signal line and a second signal line. The method also includes driving the first signal line or the second signal line high via an active buffer of the I/O device. The method also includes providing an acknowledgement signal from the host to the device through the other signal line that is not being driven high by the active buffer of the I/O device.
Claims20
A method of detecting Input/Output (I/O) device connection, comprising:
- physically coupling an I/O device to a host port through a first signal line and a second signal line;
- driving the first signal line or the second signal line high via an active buffer of the I/O device;
- and
- providing an acknowledgement signal from the host to the device through the other signal line that is not being driven high by the active buffer of the I/O device.
A host computing device, comprising:
- a host port comprising a physical layer to drive signals on a first signal line and a second signal line for communicating with a device;
- wherein the host port is to detect the connection of a device by detecting that the first signal line or the second signal line has been driven high by an active buffer of the device;
- and
- upon detection of the device, the host port provides an acknowledgement signal to the device through the other signal line that is not being driven high by the active buffer of the device.
A peripheral I/O device, comprising:
- a device port comprising a physical layer to drive signals on a first signal line and a second signal line for communicating with a host computing device;
- wherein the device port indicates presence by driving the first signal line or the second signal line high using an active buffer;
- and
- the device port waits for an acknowledgement signal received from the host computing device through the other signal line that is not being driven high by the active buffer of the device port.
Dependencies are inferred from the claim text.