7ffa6203e1
There are some boards and samples in the tree that use the CDC ACM UART as the default serial backend, just like a real UART controller would. The new device stack requires more detailed configuration than the old one. In order to use the CDC ACM UART as the serial backend with the new device stack in the same way as with the legacy stack, we need to provide a solution to initialise and enable the CDC ACM UART at boot time. We cannot use snippets as they do not support Kconfig files or source code. Shields would be an option, but they cannot be used for virtual devices such as the CDC ACM UART. The remaining solution is to put the code and Kconfig file for it in the subsys directory. Allow CDC ACM UART instance and USB device stack to be initialized and enabled at boot time and to use it as serial backend for logging or shell. Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
62 lines
1.4 KiB
Plaintext
62 lines
1.4 KiB
Plaintext
# Copyright (c) 2022 Nordic Semiconductor ASA
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#
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# SPDX-License-Identifier: Apache-2.0
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menuconfig USB_DEVICE_STACK_NEXT
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bool "New USB device stack [EXPERIMENTAL]"
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select EXPERIMENTAL
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select UDC_DRIVER
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imply HWINFO
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help
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New experimental USB device stack.
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if USB_DEVICE_STACK_NEXT
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module = USBD
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module-str = usbd
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source "subsys/logging/Kconfig.template.log_config"
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config USBD_SHELL
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bool "USB device shell"
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depends on SHELL
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help
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Enable USB device shell.
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config USBD_THREAD_INIT_PRIO
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int
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default 90
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help
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USB device thread initialization priority level.
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config USBD_THREAD_STACK_SIZE
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int "USB device stack thread stack size"
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default 1024
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help
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USB device stack thread stack size in bytes.
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config USBD_MAX_UDC_MSG
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int "Maximum number of UDC events"
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default 10
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help
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Maximum number of USB device controller events that can be queued.
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config USBD_MSG_SLAB_COUNT
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int "Maximum number of USB device notification messages"
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range 4 64
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default 8
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help
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Maximum number of USB device notification messages that can be queued.
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config USBD_MSG_WORK_DELAY
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int "USB device notification messages work delay"
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range 1 100
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default 1
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help
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Message work may need to be delayed because the device stack is not
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yet ready to publish the message. The delay unit is milliseconds.
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rsource "class/Kconfig"
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rsource "app/Kconfig.cdc_acm_serial"
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endif # USB_DEVICE_STACK_NEXT
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