On Thu, Apr 19, 2018 at 07:05:49PM +0300, Mathias Nyman wrote: > Hi > > A new version based on earlier suggestions and feedback. > > The USB 3.2 specification adds support for Dual-lane, doubling the > maximum rate to 20Gbps by taking into use another set of rx and tx > wires and pins in the Type-C cable and connector. > > The changes to support this in USB core and xhci driver seems to be minor. > USB 3.1 support already added the extended port status request returning > lane count. it just wasn't used before. > > These patches add rx_lanes and tx_lanes variables to store the number of lanes > in use, and exposes them via sysfs. > It adds a Gen XxY notion to the string displayed when a new device is > connected. > X in Gen XxY stands for signaling rate, > Y for lane count, as described in the USB 3.2 specification. > > Example for clarification: > Gen 1 = 5Gbps, SuperSpeed, one lane, same as USB3.0, and USB 3.1 Gen1 > Gen 2 = 10Gbps, SuperSpeedPlus, one lane, same as USB 3.1 Gen2 > Gen 1x2 = 10Gbps, SuperSpeed, Dual-lane (2 x 5Gbps) > Gen 2x2 = 20Gbps, SuperSpeedPlus, Dual-lane (2 x 10Gbps)
Nice, all now queued up, thanks! greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
