8457f50278
The required buffer is 128 bytes per instance on a full-speed device. Use common (UDC) buffer, as this results in a smaller footprint. Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
46 lines
1.2 KiB
Plaintext
46 lines
1.2 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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config USBD_CDC_ACM_CLASS
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bool "USB CDC ACM implementation [EXPERIMENTAL]"
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depends on SERIAL
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depends on DT_HAS_ZEPHYR_CDC_ACM_UART_ENABLED
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select SERIAL_HAS_DRIVER
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select SERIAL_SUPPORT_INTERRUPT
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select RING_BUFFER
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select UART_INTERRUPT_DRIVEN
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default y
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help
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USB device CDC ACM class implementation.
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if USBD_CDC_ACM_CLASS
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config USBD_CDC_ACM_WORKQUEUE
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bool "Use dedicated workqueue in CDC ACM"
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help
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Use the dedicated queue in CDC ACM implementation if the systemwork
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queue cannot be used due to performance issues or other conflicts.
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config USBD_CDC_ACM_STACK_SIZE
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int "USB CDC ACM workqueue stack size"
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depends on USBD_CDC_ACM_WORKQUEUE
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default 1024
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help
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USB CDC ACM workqueue stack size.
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config USBD_CDC_ACM_BUF_POOL
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bool "Use dedicated buffer pool"
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default y if !USBD_MAX_SPEED_FULL
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help
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Use a dedicated buffer pool whose size is based on the number of CDC
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ACM instances and the size of the bulk endpoints. When disabled, the
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implementation uses the UDC driver's pool.
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module = USBD_CDC_ACM
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module-str = usbd cdc_acm
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default-count = 1
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source "subsys/logging/Kconfig.template.log_config"
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endif
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