linux kernel - USB roothub device request handling

Question

Root hub driver is submitting interrupt URB(https://elixir.bootlin.com/linux/latest/source/drivers/usb/core/hub.c#L1266).

My understanding is USB host controller integrates a root hub device. Here my question is where is the root hub device side source to respond to a interrupt request submitted by the root hub driver.

I could see the hub descriptors creation in "drivers/usb/host/xhci-hub.c". Can you help in understanding the hub device requests handling source for any USB host controller.

question from:https://stackoverflow.com/questions/65895472/usb-roothub-device-request-handling

Answer 1

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