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The USS720 parport driver source code is in drivers/usb/misc/, the corresponding config is defined in drivers/usb/Kconfig. Some digging in the kernel's history revealed no good reason why it needs to be defined in USB's top-level Kconfig file, and why the config for the USS720 parport driver should be the first in the list of USB port drivers, while all other configs for drivers in drivers/usb/misc are in the USB Miscellaneous driver configuration file. Most probably, it was simply considered a bit more special when the USB Miscellaneous driver configuration file (drivers/usb/misc/Config.in back then) was initially created, and this config simply survived to remain at the top-level USB Kconfig file with all further code/Kconfig transformations and additions later on. Users rarely notice this config being at this position, as CONFIG_PARPORT (Parallel port support) needs to be enabled and only few users enable that. Nowadays, this USB_USS720 driver is probably not that special that it needs to be listed as first item of the USB port drivers. Move the configuration of the USS720 parport driver to the top of the USB Miscellaneous drivers section, as the configurations does not have a lot of specific ordering USB Miscellaneous drivers. This way, the USS720 parport driver is moved to the comment "USB Miscellaneous drivers", fitting to the driver's source code location, but still is at the top of the list for those few acquainted users of Kconfig UIs that might be looking for the config that was once at the top of the list of the USB port drivers. Put this config definition to a more local place. No semantic change. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Link: https://lore.kernel.org/r/20230329075125.32352-1-lukas.bulwahn@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
152 lines
3.7 KiB
Text
152 lines
3.7 KiB
Text
# SPDX-License-Identifier: GPL-2.0
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#
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# USB device configuration
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#
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config USB_OHCI_BIG_ENDIAN_DESC
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bool
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config USB_OHCI_BIG_ENDIAN_MMIO
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bool
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config USB_OHCI_LITTLE_ENDIAN
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bool
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default n if PPC_MPC52xx
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default y
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config USB_EHCI_BIG_ENDIAN_MMIO
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bool
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config USB_EHCI_BIG_ENDIAN_DESC
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bool
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config USB_UHCI_BIG_ENDIAN_MMIO
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bool
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config USB_UHCI_BIG_ENDIAN_DESC
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bool
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menuconfig USB_SUPPORT
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bool "USB support"
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depends on HAS_IOMEM
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default y
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help
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This option adds core support for Universal Serial Bus (USB).
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You will also need drivers from the following menu to make use of it.
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if USB_SUPPORT
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source "drivers/usb/common/Kconfig"
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config USB_ARCH_HAS_HCD
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def_bool y
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config USB
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tristate "Support for Host-side USB"
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depends on USB_ARCH_HAS_HCD
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select GENERIC_ALLOCATOR
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select USB_COMMON
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select NLS # for UTF-8 strings
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help
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Universal Serial Bus (USB) is a specification for a serial bus
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subsystem which offers higher speeds and more features than the
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traditional PC serial port. The bus supplies power to peripherals
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and allows for hot swapping. Up to 127 USB peripherals can be
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connected to a single USB host in a tree structure.
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The USB host is the root of the tree, the peripherals are the
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leaves and the inner nodes are special USB devices called hubs.
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Most PCs now have USB host ports, used to connect peripherals
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such as scanners, keyboards, mice, modems, cameras, disks,
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flash memory, network links, and printers to the PC.
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Say Y here if your computer has a host-side USB port and you want
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to use USB devices. You then need to say Y to at least one of the
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Host Controller Driver (HCD) options below. Choose a USB 1.1
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controller, such as "UHCI HCD support" or "OHCI HCD support",
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and "EHCI HCD (USB 2.0) support" except for older systems that
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do not have USB 2.0 support. It doesn't normally hurt to select
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them all if you are not certain.
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If your system has a device-side USB port, used in the peripheral
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side of the USB protocol, see the "USB Gadget" framework instead.
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After choosing your HCD, then select drivers for the USB peripherals
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you'll be using. You may want to check out the information provided
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in <file:Documentation/usb/> and especially the links given in
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<file:Documentation/usb/usb-help.rst>.
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To compile this driver as a module, choose M here: the
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module will be called usbcore.
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config USB_PCI
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bool "PCI based USB host interface"
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depends on PCI
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default y
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help
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Many embedded system SOCs (e.g. freescale T2080) have both
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PCI and USB modules with the USB module directly controlled by
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registers and having no relationship to the PCI module.
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If you have such a device you may say N here and PCI related code
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will not be built in the USB driver.
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if USB
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source "drivers/usb/core/Kconfig"
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source "drivers/usb/mon/Kconfig"
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source "drivers/usb/host/Kconfig"
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source "drivers/usb/renesas_usbhs/Kconfig"
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source "drivers/usb/class/Kconfig"
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source "drivers/usb/storage/Kconfig"
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source "drivers/usb/image/Kconfig"
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source "drivers/usb/usbip/Kconfig"
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endif
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comment "USB dual-mode controller drivers"
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source "drivers/usb/cdns3/Kconfig"
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source "drivers/usb/fotg210/Kconfig"
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source "drivers/usb/mtu3/Kconfig"
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source "drivers/usb/musb/Kconfig"
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source "drivers/usb/dwc3/Kconfig"
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source "drivers/usb/dwc2/Kconfig"
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source "drivers/usb/chipidea/Kconfig"
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source "drivers/usb/isp1760/Kconfig"
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comment "USB port drivers"
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if USB
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source "drivers/usb/serial/Kconfig"
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source "drivers/usb/misc/Kconfig"
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source "drivers/usb/atm/Kconfig"
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endif # USB
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source "drivers/usb/phy/Kconfig"
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source "drivers/usb/gadget/Kconfig"
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source "drivers/usb/typec/Kconfig"
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source "drivers/usb/roles/Kconfig"
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endif # USB_SUPPORT
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