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7f70b89b2b
Introduce offload_usage and corresponding apis to track offload usage on each USB device. Offload denotes that there is another co-processor accessing the USB device via the same USB host controller. To optimize power usage, it's essential to monitor whether the USB device is actively used by other co-processor. This information is vital when determining if a USB device can be safely suspended during system power state transitions. Signed-off-by: Guan-Yu Lin <guanyulin@google.com> Link: https://lore.kernel.org/r/20250911142051.90822-3-guanyulin@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250911142051.90822-3-guanyulin@google.com
23 lines
618 B
Makefile
23 lines
618 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for USB Core files and filesystem
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#
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usbcore-y := usb.o hub.o hcd.o urb.o message.o driver.o
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usbcore-y += config.o file.o buffer.o sysfs.o endpoint.o
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usbcore-y += devio.o notify.o generic.o quirks.o devices.o
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usbcore-y += phy.o port.o
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usbcore-$(CONFIG_OF) += of.o
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usbcore-$(CONFIG_USB_XHCI_SIDEBAND) += offload.o
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usbcore-$(CONFIG_USB_PCI) += hcd-pci.o
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usbcore-$(CONFIG_ACPI) += usb-acpi.o
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ifdef CONFIG_USB_ONBOARD_DEV
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usbcore-y += ../misc/onboard_usb_dev_pdevs.o
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endif
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obj-$(CONFIG_USB) += usbcore.o
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obj-$(CONFIG_USB_LEDS_TRIGGER_USBPORT) += ledtrig-usbport.o
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