initial commit, hci_uart with usb cdc and custom commands

overlay-usb.conf

@@ -0,0 +1,54 @@
+#USB stuff
+CONFIG_USB_DEVICE_STACK=y
+CONFIG_USB_DEVICE_PRODUCT="Zephyr HCI UART sample"
+CONFIG_USB_CDC_ACM=y
+CONFIG_USB_DEVICE_INITIALIZE_AT_BOOT=n
+
+#CONFIG_USB_DEVICE_LOG_LEVEL_DBG=y
+
+# stack
+#CONFIG_ISR_STACK_SIZE=8192
+#CONFIG_IDLE_STACK_SIZE=8192
+#CONFIG_MAIN_STACK_SIZE=8192
+#CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=8192
+#CONFIG_IPC_SERVICE_BACKEND_RPMSG_WQ_STACK_SIZE=8192
+#CONFIG_HEAP_MEM_POOL_SIZE=8192
+
+# Enable ISO support
+CONFIG_BT_ISO_BROADCASTER=y
+CONFIG_BT_ISO_TX_BUF_COUNT=10
+CONFIG_BT_ISO_TX_MTU=251
+CONFIG_BT_ISO_RX_BUF_COUNT=10
+CONFIG_BT_ISO_RX_MTU=251
+
+# setup rpmsg/Bluetooth buffer
+CONFIG_BT_BUF_EVT_RX_COUNT=16
+CONFIG_BT_BUF_EVT_RX_SIZE=255
+CONFIG_BT_BUF_ACL_RX_SIZE=255
+CONFIG_BT_BUF_ACL_TX_SIZE=251
+CONFIG_BT_BUF_CMD_TX_SIZE=255
+
+#debug stuff
+#CONFIG_ASSERT=y
+
+#CONFIG_THREAD_NAME=y
+#CONFIG_THREAD_ANALYZER=y
+#CONFIG_THREAD_ANALYZER_AUTO=y
+#CONFIG_THREAD_ANALYZER_RUN_UNLOCKED=y
+
+#CONFIG_HW_STACK_PROTECTION=y
+
+#CONFIG_CONSOLE=n
+#CONFIG_LOG=y
+#CONFIG_LOG_BUFFER_SIZE=4096
+#CONFIG_RTT_CONSOLE=y
+#CONFIG_UART_CONSOLE=n
+#CONFIG_LOG_BACKEND_RTT=y
+#CONFIG_LOG_BACKEND_RTT_MODE_DROP=n
+#CONFIG_USE_SEGGER_RTT=y
+#CONFIG_SEGGER_RTT_BUFFER_SIZE_UP=2048
+#CONFIG_LOG_BACKEND_SHOW_COLOR=n
+#CONFIG_LOG_PROCESS_THREAD_STACK_SIZE=8192
+
+#CONFIG_LOG_DEFAULT_LEVEL=3
+