0127d000a2
Prevent ECHO on Linux by arming IN endpoint with ZLP when interface is configured and making sure that actual payload is only sent after initialization timeout. The ZLP is not visible to host side applications because the applications are really accessing tty buffer and received ZLP does not modify tty buffer in any way. Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
71 lines
1.7 KiB
Plaintext
71 lines
1.7 KiB
Plaintext
# Copyright (c) 2016 Wind River Systems, Inc.
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# SPDX-License-Identifier: Apache-2.0
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menu "USB CDC ACM Class support"
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config USB_CDC_ACM
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bool "USB CDC ACM Class support"
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default y
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select USB_COMPOSITE_DEVICE
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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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help
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USB CDC ACM class support.
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if USB_CDC_ACM
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config USB_CDC_ACM_RINGBUF_SIZE
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int "USB CDC ACM ring buffer size"
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default 1024
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help
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USB CDC ACM ring buffer size
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config CDC_ACM_INTERRUPT_EP_MPS
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int
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default 16
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help
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CDC ACM class interrupt IN endpoint size
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config CDC_ACM_BULK_EP_MPS
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int
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default 512 if USB_DC_HAS_HS_SUPPORT
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default 64
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help
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CDC ACM class bulk endpoints size
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config CDC_ACM_TX_DELAY_MS
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int
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default 100
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help
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Time in milliseconds to wait before sending actual payload to host.
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This is needed to prevent tty ECHO on Linux.
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config CDC_ACM_IAD
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bool "Force using Interface Association Descriptor"
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default y
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help
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IAD should not be required for non-composite CDC ACM device,
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but Windows 7 fails to properly enumerate without it.
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Enable if you want CDC ACM to work with Windows 7.
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config CDC_ACM_DTE_RATE_CALLBACK_SUPPORT
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bool "Support callbacks when the USB host changes the virtual baud rate"
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default BOOTLOADER_BOSSA
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help
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If set, enables support for a callback that is invoked when the
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remote host changes the virtual baud rate. This is used
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by Arduino style programmers to reset the device into the
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bootloader.
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module = USB_CDC_ACM
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module-str = usb cdc acm
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source "subsys/logging/Kconfig.template.log_config"
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endif # USB_CDC_ACM
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endmenu
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