| .. zephyr:code-sample:: usb-shell |
| :name: USB shell |
| :relevant-api: usbd_api |
| |
| Use shell commands to interact with USB device stack. |
| |
| Overview |
| ******** |
| |
| The sample enables new experimental USB device support and the shell function. |
| It is primarily intended to aid in the development and testing of USB controller |
| drivers and new USB support. |
| |
| Building and flashing |
| ********************* |
| |
| Assuming the board has a supported USB device controller, the example can be |
| built like: |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/subsys/usb/shell |
| :board: reel_board |
| :goals: flash |
| :compact: |
| |
| For the USB host functionality a supported host controller is required, |
| currently it is only MAX3421E. The example can be built as follows: |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/subsys/usb/shell |
| :board: nrf52840dk_nrf52840 |
| :shield: sparkfun_max3421e |
| :gen-args: -DCONFIG_UHC_DRIVER=y -DCONFIG_USB_HOST_STACK=y |
| :goals: flash |
| :compact: |
| |
| It is theoretically possible to build USB support using virtual USB controllers |
| for all platforms, eventually the devicetree overlay has to be adjusted slightly if |
| the platform has already defined or not `zephyr_uhc0` or `zephyr_udc0` nodelabels. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/subsys/usb/shell |
| :board: nrf52840dk_nrf52840 |
| :gen-args: -DEXTRA_CONF_FILE=virtual.conf -DDTC_OVERLAY_FILE=virtual.overlay |
| :goals: flash |
| :compact: |
| |
| Sample shell interaction |
| ======================== |
| |
| .. code-block:: console |
| |
| uart:~$ usbd defaults |
| dev: USB descriptors initialized |
| uart:~$ usbd config add 1 |
| uart:~$ usbd class add foobaz 1 |
| dev: added USB class foobaz to configuration 1 |
| uart:~$ usbd init |
| dev: USB initialized |
| uart:~$ usbh init |
| host: USB host initialized |
| uart:~$ usbh enable |
| host: USB host enabled |
| [611:00:28.620,000] <wrn> usbd_core: VBUS detected event |
| uart:~$ usbh bus resume |
| host: USB bus resumed |
| uart:~$ usbd enable |
| host: USB device connected |
| dev: USB enabled |
| uart:~$ usbh device descriptor device 0 |
| host: transfer finished 0x20006250, err 0 |
| 00000000: 80 06 00 01 00 00 12 00 |........ | |
| bLength 18 |
| bDescriptorType 1 |
| bcdUSB 200 |
| bDeviceClass 239 |
| bDeviceSubClass 2 |
| bDeviceProtocol 1 |
| bMaxPacketSize0 64 |
| idVendor 2fe3 |
| idProduct ffff |
| bcdDevice 301 |
| iManufacturer 1 |
| iProduct 2 |
| iSerial 3 |
| bNumConfigurations 1 |
