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Usb gadget pullup. 5 K Ω pullup resistor on the USB_n_DP signal.

  • Usb gadget pullup. If the USB gadget is disabling the pullup, then avoid having to issue a runtime resume, as DWC3 gadget has already been halted/stopped. 利用Linux USB gadget设备驱动可以实现一些比较有意思的功能，举两个例子： 1、一个嵌入式产品中的某个存储设备，或是一个存储设备的某个分区，可以作为一个U盘被PC；设别，从而非常方便的完成文件 VBUS is available at the device side. Please note that since you configured both usb ports in otg mode, you have to load two different gadget drivers, Linux In scenarios where pullup relies on resume (get sync) to initialize the controller and set the run stop bit, then core_init is followed by gadget_resume which will eventually set run stop bit. This resistor is switched on to indicate to the host/hub controller that a full-speed This is the first such "USB Gadget" framework on GNU/Linux to support high speed (USB 2. USB for Linux: Re: usb: dwc3: gadget: skip pullup and set_speed after suspend android / platform / hardware / interfaces / refs/heads/main / . 2 / default / lib / include / UsbGadgetCommon. 7k resistor, but it should s***@public. The problem is when you disconnect the pullup, a gadget maybe in the middle Linux USB Gadget软件结构一文中分析Linux USB Gadget软件分为三层。这三层其中两层是与硬件无关的，分别是Gadget功能驱动层，USB设备层。一层是与硬件相关的是UDC层。每一层都提供一种关键的数据结构与函数与其他层交互。 Gadget功能驱动层: 最主要的结构是struct usb_composite_driver，这个结构在这层定义 Information Technology Laboratory National Vulnerability DatabaseVulnerabilities [prev in list] [next in list] [prev in thread] [next in thread] List: u-boot Subject: Re: [PATCH] usb: gadget: dwc2_udc_otg: implement pullup () From: Harald Seiler <hws () denx ! de> Date: 2023-01-10 13:30:14 Message-ID: 45c496c31b29671a1f3d38c95362db0d238c70a6. It was attempted to be be fixed with [1] but ended up doing the gadget disconnection too early, creating issues on NXP-based boards which use uuu [2]. camel () denx ! de [Download RAW message or body] Hi, On Tue, 2023-01-10 at 10:11 UVC使用参考 1. On many STM32 MCUs this pull-up resistor is built-in 介绍USB系统框架，只关注框架部分，不涉及细节 这里的USB设备控制器（UDC）驱动指作为其他usb主机控制器外设的usb硬件设备上底层硬件控制器的驱动，该硬件和驱动负责将一个usb设备依附于一个usb主机控制器上。 在usb设备控制器于gadget驱动中，我们主要关心几个核心的数据结构。描述一个usb设备 而gadget_driver_pending_list中的成员来自于 usb_gadget_probe_driver函数的注册。 static int udc_bind_to_driver(struct usb_udc *udc, struct usb_gadget_driver *driver) Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Hi Wesley, On Thu, Feb 03, 2022 at 12:00:15AM -0800, Wesley Cheng wrote: > While running the pullup disable sequence, if there are pending SETUP > transfers stored in the controller, then the endxfer commands will Should mention specifically that the endxfer commands *on non-EP0* 1. yun@xxxxxxxxxxxx>, usb gadget 驱动之 configfs，代码先锋网，一个为软件开发程序员提供代码片段和技术文章聚合的网站。 On 1/21/2021 12:13 AM, Jung Daehwan wrote: > On Wed, Jan 20, 2021 at 11:44:05PM -0800, Wesley Cheng wrote: >> >> >> On 1/20/2021 10:49 PM, Jung Daehwan wrote: >>> Hi 注：类似 libphy 框架，可再跟进比较。 gadget 框架包含： udc、function、legacy 三个主要组成。 legacy, 传统的 USB 设备功能配置方，主要依赖于 gadgetfs 接口； function， 更加现代化和结构化的 USB 设备功能配置方式，它依赖于 configfs 接口； / drivers / usb / mtu3 / mtu3_gadget. The gadget API resembles the host side Linux-USB API in that both use queues of request objects to package I/O buffers, and those requests may be submitted or canceled. On the other hand the datasheet recommends to use the PullUp since it is requested in the USB 2. 硬件相关 EVB板作为USB device使用时需断开跳线JP84并连接JP87，如下图： 同时检查背面的R456、R457这两颗电阻是否焊接（默认是没焊的），未焊接的话背面的mini-USB口无法使用，只能使用正面 本文介绍USB设备控制器（UDC）驱动架构，含核心层、gadget driver层和硬件层。阐述dwc3控制器初始化及模式切换，分析关键数据结构如端点、USB I/O请求、TRB，涵盖其功能、参数及在数据传输中的 1. > > (android in my case) > > > > It's possible that platform side tries to pullup by UDC_Store after usb is Attached is a small fix for the fsl usb gadget driver. Linux Gadget框架用于模拟USB设备，支持主控SoC作为USB从机。框架分底层UDC驱动和上层软件操作，通过endpoint实现数据传输。描述符构造包括设备、配置、接口和端点描述符，Host通过控制传输 On 11/18/2020 2:14 AM, Michael Tretter wrote: > Hello, > > On Mon, 28 Sep 2020 17:20:59 -0700, Wesley Cheng wrote: >> In the DWC3 databook, for a device initiated disconnect or bus reset, the >> driver is required to send dependxfer commands for any pending transfers. The Hub detects the attachment and informs the host (status change). h文件中，设备层其实和硬件无关，主要实现一些通用性的代码，减少gadg Linux USB Gadget软件结构一文中分析Linux USB Gadget软件分为三层。这三层其中两层是与硬件无关的，分别是Gadget功能驱动层，USB设备层。一层是与硬件相关的是UDC层。每一层都提供一种关键的数据结构与函数与其他层交互。 Gadget功能驱动层: 最主要的结构 Expose standard or fully custom USB peripherals (gadgets) through a USB device controller (UDC) on Linux using Rust. 20. - surban/usb-gadget Can you try the > >> latest changes of DWC3 in Greg's usb-next branch? > >> > >> Thanks, > >> Thinh > > > > I checked Wesly Cheng's pathces but it's not same. But we've stumbled on USB gadget malfunction usb_gadget_driver - driver for usb 'slave' devices. dwc3: timed out waiting for SETUP phase > > If this occurs, then the entire pullup disable routine is skipped and > proper cleanup and halting of the controller does not complete We would like to show you a description here but the site won’t allow us. 🛠🛡📱 The Linux driver works correctly because gadget_disconnect/gadget_connect are always followed by gadget_udc_start/gadget_udc_stop. c +++ b/drivers/usb/dwc3/gadget. 0 spec. yun@xxxxxxxxxxxx> Date: Tue, 8 Jun 2021 15:57:47 +0800 Cc: Chunfeng Yun <chunfeng. The response to a set_configuration usually involves enabling one or more of the struct usb_ep objects exposed by the gadget, and submitting one or more struct usb_request buffers to transfer data. 概述 如下图所示，USB控制器可以呈现出两种不同的状态。USB控制器作为Host时，称为USB主机控制器，使用USB主机控制器驱动。USB控制器作为Device时，称为USB设备控制器，使用UDC（usb device controller）驱动。本节只分析USB控制器作为Device时的驱动框 USB设备驱动开发-USB Gadget Driver (一) 一、Linux USB Gadget Driver功能 为了与主机端驱动设备的USB Device Driver概念进行区别，将在外围器件中运行的驱动程序称为USB Gadget Driver。 其中，Host端驱动设备的驱动程序是master或者client driver，设备端gadget driver是slave或者function driver。 I am designing a USB full speed board around the STM32F103xx MCU and was wondering how to physically position the 1. This is observed, for example, with the dwc3 driver with the following call stack: device_del() gadget_unbind_driver() usb_gadget_disconnect_locked() > From: Amelie Delaunay <amelie. USB Gadget 驱动 3. 14 内核代码。 3. 0 Gadget设备在设备枚举期间如何响应主机的Get_Descriptor请求，涉及中断处理、数据结构分析和关键控制传输操作。 This product contains a switchable 1. This fixes an issue where the following condition occurs: usb_gadget_remove_driver() - In USB protocol interactions, the device driver is the master (or “client driver”) and the gadget driver is the slave (or “function driver”). 1 什么是 USB Gadget 驱动？ USB 设备驱 In U-Boot > pullup () is used solely. 0设备控制器驱动的中断处理流程，包括获取中断号、注册中断处理函数以及中断下半部的处理。同时，介绍了端点初始化的过程，包括端点0和其他端点的操作函数配置，以及内存分配。此外，还探讨了`usb_add_gadget_udc`函数在注册gadget设备和添加到udc列表中的作用。 文章浏览阅读1. 背景 本文所有分析基于 Linux 4. 前言 限于作者能力水平，本文可能存在谬误，因此而给读者带来的损失，作者不做任何承诺。 2. To: <hminas@xxxxxxxxxxxx>, <gregkh@xxxxxxxxxxxxxxxxxxx> Subject: [PATCH] usb: dwc2: gadget: remove D+ pull-up while no vbus with usb-role-switch From: Fabrice Gasnier <fabrice. 8w次，点赞26次，收藏145次。 本文详细解析了DWC3 USB控制器在设备模式下的初始化过程，包括设置为OTG模式、资源分配、端点0特性和模式切换方法。 关键数据结构如端点、I/O请求 Convert your Android phone to any USB device you like! USB Gadget Tool allows you to create and activate USB device roles, like a mouse or a keyboard. Connected USB hosts (e. By implementing pullup () in the On Fri, Aug 08, 2025 at 05:18:04PM +0200, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@arndb. 1. g. Understand those four data types, and 文章浏览阅读622次。 首先要知道普通usb是主从模式的， 一切通信都是由主机控制的，从机没有控制权，也有主从转换的情况。 主机通过引脚触发的中断来知道usb设备的插入，然后发起握手，所以gadget作为从机需要有一个引脚来触发主机的引脚的中断，pullup引脚。 [prev in list] [next in list] [prev in thread] [next in thread] List: linux-usb Subject: [PATCH RESEND] [RFC] usb:gadget: Refcount for gadget pullup From: Lukasz Majewski <l. gmane. Would be great to have some Tested-by before picking this series up. It can also be used to deactivate the As an USB Gadget in Linux This gives a simple script with zero dependencies that can easily run on any Linux device (eg: Raspberry Pi) that is setup to emulate an USB Gadget, and send Multimedia Key presses such as Volume Up, Play, Next Song, etc. Android has its own usb_composite_driver usb/gadget/android. Handles devices with dozens of endpoints just as well as ones with just two fixed In design document from STMicroelectronics called "USB hardware and PCB guidelines using STM32 MCUs" is said, that USB devices (aka. 7k次。本文详细解析了USB Gadget驱动框架中的usb_udc与usb_gadget_driver绑定过程，包括usb_function的匹配流程，并介绍了关键函数的实现细节。 mtu->delayed_status = false; mtu3_gadget_init_eps(mtu); ret = usb_add_gadget_udc( (struct device *)mtu->dev, &mtu->g); if (ret) dev_err(mtu->dev, "failed to register udc\n"); return ret; } void mtu3_gadget_cleanup(struct mtu3 *mtu) { usb_del_gadget_udc(&mtu->g); } void mtu3_gadget_resume(struct mtu3 *mtu) { dev_dbg(mtu->dev, "gadget RESUME\n"); Gadget功能驱动层: 最主要的结构是struct usb_composite_driver，这个结构在这层定义，并且实现结构中的各个函数。 USB设备层: 最主要的数据结构是struct usb_composite_dev与usb_gadget_driver。前一个代表一个USB复合设备，而后一个是Gadget驱动，与UDC层交互。 > During a USB cable disconnect, or soft disconnect scenario, a pending > SETUP transaction may not be completed, leading to the following > error: > > dwc3 a600000. Linux Kernel: Re: [PATCH v2 1/2] usb: dwc3: gadget: Bail out in pullup if soft reset timeout happens Cc: <stable@xxxxxxxxxxxxxxx> Fixes: bb0147364850 ("usb: dwc3: gadget: don't clear RUN/STOP when it's invalid to do so") Reviewed-by: Thinh Nguyen <Thinh. / usb / gadget / 1. 5k pullup resistor on D+, but this board is known to have a wrong value (R10 on the board). gadgets) need a 1. So if the PullUp is a must, why is there no true description on how to implement that PullUp right in USB gadget设备驱动解析1-4作者：刘洪涛，华清远见嵌入式学院金牌讲师USB gadget设备驱动解析（1）——功能体验 利用Linux USB gadget设备驱动可以实现一些比较有意思的功能，举两个例子： 1、一个 This series cleanup and enhance dwc3 pullup () handling to cover different corner cases. a normal computer) will then identify your Android device only under that role. c index 5d084542718d. majewski () samsung ! com [Download RAW message or body] This commit fixes the way gadget's pullup It was attempted to be be fixed with [1] but ended up doing the gadget disconnection too early, creating issues on NXP-based boards which use uuu [2]. 0, for high speed devices which can stream data at several dozen megabytes per second. The author found this code/example didn't exist and especially not in Python. 5 kOhm pull-up resistor on the D+ line in order for them to identify as devices (rather than hosts). > > This behavior has been observed on the SAM9X60-Curiosity and > AT91SAM9G25-EK boards and has been reported to Microchip. . 从错误信息上看，驱动唤醒USB3300失败了。可以看一下USB3300的手册，看看如果唤醒的话，外部需要满足什么条件？例如是否有wakeup信号线需要拉高之类的。 3. The device connects the pull-up data line resistor. 10. Nguyen@xxxxxxxxxxxx> Signed-off-by: Wesley Cheng <wcheng@xxxxxxxxxxxxxx> --- Changes in v5: - Added Cc stable and fixes tag Changes in v4: - Fixed formatting and typos in It's found in Android using kernel 3. 🛠🛡📱 文章浏览阅读1. PC和USB无法断开的现象，是PC这边一直显示 This improves dwc2 gadget driver compatibility with gadget API requirements (now pullup method really forces soft disconnect mode instead of shutting down the whole hardware) and as a side effect also solves the issue related to limited caller context for PHY related functions (they cannot be called from non-sleeping context). But in cases where the core_init fails, the return value is not sent back to udc appropriately. org 2014-03-21 05:11:41 UTC Permalink -----Original Message----- Sent: Thursday, March 20, 2014 9:33 PM To: Gupta Suresh-B42813 Subject: Re: [PATCH v2] USB: Gadget: fsl driver pullup fix This fix the fsl usb gadget driver in a way that the usb device will be only "pulled up" on requests only when vbus is powered --- * Removed re-factored code, Will 本文详细分析了Linux内核中DWC3 USB3. Since the cable is disconnected, the dwc->connected flag would still be false. By implementing pullup () in the controller driver, we ensure that the disconnection will only be done when the framework calls usb_gadget_disconnect (). 0) devices and arbitrary numbers of endpoints, sharing core models and data I am using an Olimex P103 board at the moment and the schematics for this board have what they call a DISC pin which disconnects the USB pullup under program control. c @@ -2428,10 +2428,8 @@ static int dwc3_gadget_pullup(struct usb_gadget *g, int is_on) ret = wait_for_completion_timeout(&dwc->ep0_in_setup, Linux下USB gadget设备详解 USB gadget是什么？ Linux-USB Gadget 驱动框架（以下简称 Gadget）实现了USB 协议定义的设备端的软件功能。 Convert your Android phone to any USB device you like! USB Gadget Tool allows you to create and activate USB device roles, like a mouse or a keyboard. 5 kΩ pull-up resistor on D+. gasnier@xxxxxxxxxxx> Date: Wed, 22 Jun 2022 18:07:17 +0200 Cc: <linux-usb@xxxxxxxxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>, <linux Re: [RFC] [PATCH] usb: dwc3: usb: dwc3: Force stop EP0 transfers during pullup disable To: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Rob Herring <robh+dt@xxxxxxxxxx>, Felipe Balbi <balbi@xxxxxxxxxx> Subject: [PATCH 21/23] usb: mtu3: support suspend/resume for device mode From: Chunfeng Yun <chunfeng. The host asks the Hub for a port 本文详细解析了Linux下USB 3. usb作为设备模式时的数据结构是usb_gadget和gadget_driver；usb_gadget内部包含了usb_udc和usb_gadget_ops数据结构，usb_gadget_ops是usb控制器硬件操作函数集合，指向了dwc3_gadget_ops；gadget_driver是具体设 [prev in list] [next in list] [prev in thread] [next in thread] List: u-boot Subject: Re: [PATCH] usb: gadget: dwc2_udc_otg: implement pullup () From: Marek Vasut <marex () denx ! de> Date: 2023-01-10 13:35:55 Message-ID: 97b70ac7-7fe9-7e04-659e-fc388f31905a () denx ! de [Download RAW message or body] On 1/10/23 14:30, Harald Seiler wrote: > Hi, > > On Tue, 2023-01-10 Linux ARM, OMAP, Xscale Kernel: [PATCH] AT91, DT, usb gadget: disable pull-up on vbus-gpio (PB16) to reduce power consumption Gadget drivers declare themselves through a struct usb_gadget_driver, which is responsible for most parts of enumeration for a struct usb_gadget. > > What I want to do for this patch is to avoid pullup from platform side. usb 从设备驱动通用结构。 作用：提供一个通用的usb gadget driver 模板，向下注册到udc,向上给functions driver提供bind 回调等。 diff --git a/drivers/usb/dwc3/gadget. 16 171/328] usb: gadget: net2280: fix pullup handling From: Ben Hutchings <ben@xxxxxxxxxxxxxxx> Date: Sun, 09 Dec 2018 21:50:33 +0000 Cc: akpm@xxxxxxxxxxxxxxxxxxxx, "Felipe Balbi" <balbi@xxxxxx>, "Mian Yousaf Kaukab" <yousaf. 之前贴出来的信息是再连接以后报错，出现的错误吗？出现错误以后，kernel本身还能正常运行吗？ 2. This fix the driver in a way that the usb device will be only "pulled up" on requests Linux Kernel: Re: usb: dwc3: gadget: skip pullup and set_speed after suspend UDC驱动程序还需要为上层实现usb_gadget_register_driver和usb_gadget_unregister_driver两个gadget driver注册接口，这两个函数将实现gadget driver和udc driver绑定。 > > The sequence shows that the USB gadget disconnect (dwc3_gadget_pullup(0)) > routine completed successfully, allowing for the USB gadget to proceed with > a USB gadget connect. On many STM32 MCUs this pull-up resistor is built-in (all MCUs with USB OTG). We have managed to make SPL and U-boot working. Gadget drivers declare themselves through a struct usb_gadget_driver, which is responsible for most parts of enumeration for a struct usb_gadget. gasnier@xxxxxxxxxxx> Date: Wed, 22 Jun 2022 18:07:17 +0200 Cc: <linux-usb@xxxxxxxxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>, <linux Part Number: AM4376 Hi All, We try to implement USB_CL boot mode. Contribute to torvalds/linux development by creating an account on GitHub. delaunay@xxxxxxxxxxx> > > When using usb-role-switch, D+ pull-up is set as soon as DTCL_SFTDISCON is > cleared, whatever the vbus valid signal state is. 概述Gadget USB设备控制器（UDC）驱动指的是作为其他USB主机控制器外设的USB硬件设备上底层硬件控制器的驱动，该硬件和驱动负责将一个USB设备依附于一个USB主机控制器上。例如，当某运 文章浏览阅读1. >> In addition, before the controller can move to the halted state, the SW >> needs to acknowledge any 一. de> > > None of the remaining boards put useful data into the If the device is already in the runtime suspended state, any call to the pullup routine will issue a runtime resume on the DWC3 core device. c 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 To: <hminas@xxxxxxxxxxxx>, <gregkh@xxxxxxxxxxxxxxxxxxx> Subject: [PATCH] usb: dwc2: gadget: remove D+ pull-up while no vbus with usb-role-switch From: Fabrice Gasnier <fabrice. 5 K Ω pullup resistor on the USB_n_DP signal. This behavior has been observed on the SAM9X60-Curiosity and AT91SAM9G25-EK boards and has been reported to 很幸运，在公司开发了gadget相关驱动，总结下来，大大小小开发了四个与gadget相关的驱动，字符驱动、g_multi、g_ether、g_zero，在这里把自己对gadget的开发中自己的感悟记录之。 想要了解gadget，必须了解其框架，知道composite、gadget、udc三者之间的联系，知道usb描述符的作用。 一个usb device有一个设备 USB设备驱动程序-USB Gadget Driver(三) Gadget设备层 这一层是可选的，介于UDC驱动层和Gadget功能层之间。主要源码在composite. c (not in mainline), and it allows userspace to disconnect the pullup (i. h blob: 18b8101ebe1bc799db61e56cea7346a9601325c3 [file] [log] [blame] [edit] Gadget Device 还提供了 UDC 层级的一些操作函数，UDC Driver 在调用 usb_add_gadget_udc () 注册 Gadget Device 之前，初始化了 Gadget 的 操作函数集： Convert your Android phone to any USB device you like! USB Gadget Tool allows you to create and activate USB device roles, like a mouse or a keyboard. c文件 Gadget start and enable irq > Hi Daehwan, If this is an unexpected event where userspace initiates the UDC bind sequence, then after the above sequence occurs, the DWC3 device should still be able to re-enter runtime suspend after the autosuspend timer expires. c b/drivers/usb/dwc3/gadget. majewski () samsung ! com> Date: 2012-07-30 16:01:07 Message-ID: 1343664067-2528-1-git-send-email-l. Hi Thinh/Felipe, On 8/16/2021 12:13 PM, Wesley Cheng wrote: > Hi Thinh, > > On 8/15/2021 5:33 PM, Thinh Nguyen wrote: >> Felipe Balbi wrote: >>> >>> Hi, >>> >>> Thinh Hardware installation The USB standard require a 1. Supports USB 2. 7k次，点赞2次，收藏19次。本文详细解析了DWC3驱动的probe函数、gadget_core_init_mode中的初始化过程，以及usb_composite_driver与gadget的配合，涉及dwc3_gadget的ep0配置 struct usb_gadget_driver {// 提供一个通用的usb gadget driver 模板，向下注册到udc,向上给functions driver提供bind 回调等 char *function; enum usb_device_speed max_speed; int (* bind)(struct usb_gadget * USB 控制器作为 Device 时，最上层的是 Gadget Function 驱动，代表了具体设备的驱动，如 U 盘、USB 串口、USB 虚拟网卡、UAC 驱动。Composite 层是一个可选的中间层，可通过一种配置或多种配置高效的支持多种功能 gadget驱动框架（三） usb_udc与usb_gadget_driver的绑定 usb_udc与usb_gadget_driver，在注册的时候分别被添加到udc_list和gadget_driver_pending_list中，无论这两者先后顺序如何，都将会动态的去识别及匹配到具体设备中，绑 STM32 USB Device Renumeration USB devices (aka. Thanks 1. 63f6d9f2a692 100644 --- a/drivers/usb/dwc3/gadget. e clear run/stop bit in dwc3) and remove the gadget functions like adb, mtp and then add new functions like rndis, acm. It ships with either a 10K resistor or a 4. However, if this occurs the system runs into an > issue where: > > BUG: spinlock already unlocked on CPU > spin_bug+0x0 > dwc3_remove_requests+0x278 > dwc3_ep0_out In the Linux kernel, the following vulnerability has been resolved: usb: gadget: core: flush gadget workqueue after device removal device_del() can lead to new work being scheduled in gadget->work workqueue. The D+ pullup will be enabled only after a gadget driver is loaded to the corresponding usb controller. 概述 USB设备控制器（UDC）驱动的框图如下图所示，由三部分组成。第一部分是UDC驱动核心层，在drivers/usb/gadget/udc/core. 简介 USB Gadget Driver定义了很多trace event，使用者可以在用户空间通过ftrace接口，追踪USB Gadget Driver的行为。 USB设备控制器驱动 1. In U-Boot pullup () is used solely. Should it be next to the MCU or close to the receptacle or what? Does it even make a difference? I have attached a snapshot of the layout below. I'm not against this, but the driver supports multiple gadget families according to the compatible. c和composite. DWC2 MUSB FOTG210 CDNS2 CDNS3 DWC3 工具使用 chryusb_configurator 力科 USB Protocol Suite Wireshark Audacity 版本说明 版本说明 性能展示 性能展示 商业支持 商业支持 To: linux-kernel@xxxxxxxxxxxxxxx, stable@xxxxxxxxxxxxxxx Subject: [PATCH 3. kaukab@xxxxxxxxx>, "Ricardo Ribalda Delgado" Linux kernel source tree. cxluiah wcla czl wpbdhps whx kifp edosx sdxfzc yzwrym avon