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ac375d000e
This is a simple kernel module and Makefile for building it out of tree. This module just uses the existing kernel usb serial driver and probes for the Google VID/Class/SubClass/Protocol that identifies a valid simple serial interface. This code should be rolled into the existing kernel driver at: drivers/usb/serial/usb-serial-simple.c While that happens, this module is still useful to developers. Signed-off-by: Anton Staaf <robotboy@chromium.org> BRANCH=None BUG=None TEST=cd extra/usb_serial; make; sudo insmod raiden.ko Connect the discovery-stm32f072 over USB and see that its console is discovered and works. Change-Id: I83661b816643c43b3e2dc9fdc825bc3a796af2f4 Reviewed-on: https://chromium-review.googlesource.com/225923 Reviewed-by: Olof Johansson <olofj@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Tested-by: Anton Staaf <robotboy@chromium.org> Commit-Queue: Anton Staaf <robotboy@chromium.org>
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/*
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* USB Serial module for Raiden USB debug serial console forwarding.
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* SubClass and Protocol allocated in go/usb-ids
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*
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* Copyright (c) 2014 The Chromium OS Authors <chromium-os-dev@chromium.org>
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* Author: Anton Staaf <robotboy@chromium.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/tty.h>
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#include <linux/usb.h>
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#include <linux/usb/serial.h>
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MODULE_LICENSE("GPL");
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#define USB_VENDOR_ID_GOOGLE 0x18d1
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#define USB_SUBCLASS_GOOGLE_SERIAL 0x50
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#define USB_PROTOCOL_GOOGLE_SERIAL 0x01
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static struct usb_device_id const ids[] = {
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{ USB_VENDOR_AND_INTERFACE_INFO(USB_VENDOR_ID_GOOGLE,
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USB_CLASS_VENDOR_SPEC,
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USB_SUBCLASS_GOOGLE_SERIAL,
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USB_PROTOCOL_GOOGLE_SERIAL) },
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{ 0 }
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};
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MODULE_DEVICE_TABLE(usb, ids);
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static struct usb_serial_driver device =
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{
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.driver = { .owner = THIS_MODULE,
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.name = "Google" },
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.id_table = ids,
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.num_ports = 1,
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};
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static struct usb_serial_driver * const drivers[] = { &device, NULL };
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module_usb_serial_driver(drivers, ids);
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