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usb: remove Kconfig option CONFIG_USB

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The USB configuration option is actually a global switch
to enable USB drivers in general, but currently only
the device controller drivers are meant.

USB device controller drivers also have USB_DEVICE_DRIVER option.
Thus the option USB is actually redundant and can be replaced
by the self-explanatory option USB_DEVICE_DRIVER.
The name USB itself is not unique and should not be used as an
configuration option.

With these changes the option USB_DEVICE_DRIVER generally
enables USB device controller drivers. The option USB_DEVICE_STACK
enables USB device support. It is sufficient to enable only option
USB_DEVICE_STACK because it selects USB_DEVICE_DRIVER.

CONFIG_USB Kconfig option is temporary added to subsys/usb/Kconfig.
This is necessary to pass CI and will be removed again
when the USB configuration has been adapted in modules.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
This commit is contained in:
Johann Fischer 2021-06-29 18:48:30 +02:00 • committed by Anas Nashif
commit ae074e81d4
8 changed files with 31 additions and 37 deletions
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subsys/tracing/Kconfig
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@ -137,7 +137,7 @@ config TRACING_BACKEND_UART
config TRACING_BACKEND_USB
bool "Enable USB backend"
depends on USB
depends on USB_DEVICE_STACK
depends on TRACING_ASYNC
help
Use USB to output tracing data.