michaelh/zephyr
1
0
Fork 0
Code Releases Activity

samples: shell: get CDC ACM UART device from devicetree

Browse source 
Add usb.overlay which contains chosen node and cdc-acm-uart node.
Change sample to get CDC ACM UART device from devicetree.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
This commit is contained in:
Johann Fischer 2021-07-21 21:07:22 +02:00 • committed by Christopher Friedt
commit e1d5416df3
4 changed files with 22 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

4
samples/subsys/shell/shell_module/overlay-usb.conf
View file

@ -1,7 +1,5 @@
CONFIG_USB_DEVICE_STACK=y
CONFIG_USB_DEVICE_PRODUCT="Zephyr USB console sample"
CONFIG_USB_DEVICE_PRODUCT="Zephyr USB shell sample"
CONFIG_USB_UART_CONSOLE=y
CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_UART_LINE_CTRL=y
CONFIG_UART_SHELL_ON_DEV_NAME="CDC_ACM_0"
CONFIG_SHELL_BACKEND_SERIAL_INIT_PRIORITY=51

1
samples/subsys/shell/shell_module/sample.yaml
View file

@ -15,6 +15,7 @@ tests:
harness: keyboard
min_ram: 40
extra_args: OVERLAY_CONFIG="overlay-usb.conf"
DTC_OVERLAY_FILE="usb.overlay"
sample.shell.shell_module.minimal:
filter: ( CONFIG_SERIAL and CONFIG_UART_SHELL_ON_DEV_NAME )
tags: shell

4
samples/subsys/shell/shell_module/src/main.c
View file

@ -338,8 +338,8 @@ void main(void)
const struct device *dev;
uint32_t dtr = 0;
dev = device_get_binding(CONFIG_UART_SHELL_ON_DEV_NAME);
if (dev == NULL || usb_enable(NULL)) {
dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_shell_uart));
if (!device_is_ready(dev) || usb_enable(NULL)) {
return;
}

18
samples/subsys/shell/shell_module/usb.overlay Normal file
View file

@ -0,0 +1,18 @@
/*
* Copyright (c) 2021 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
/ {
chosen {
zephyr,shell-uart = &cdc_acm_uart0;
};
};
&zephyr_udc0 {
cdc_acm_uart0: cdc_acm_uart0 {
compatible = "zephyr,cdc-acm-uart";
label = "CDC_ACM_0";
};
};