第二部分是gadget driver层,负责驱动硬件工作,和具体的USB设备控制器硬件相关,dwc3的gadget driver驱动在drivers/usb/dwc3/gadget.c文件中实现。第三部分是USB设备控制器硬件。 USB gadget驱动描述了USB设备控制器的硬件操作方法,不同的USB控制器实现不同。有的USB控制器只能作为设备控制器,如ompa、pxa2等USB设备...
1)首先根据"snps,dwc3"进行dts和driver的匹配,执行dwc3_probe() 2) 在dwc3中先调用 dwc3_get_dr_mode()取得usb mode(dr_mode),这可以是otg、host或者device 3)然后调用 dwc3_core_init()初始化usb PHY interface和usb PHY,usb PHY的初始化参照第4节。 4)最后调用 dwc3_core_init_mode()初始化usb ...
1. driver driver/usb/dwc3/debugfs.c dwc3 probe ->dwc3 debugfs init() 2. enable debugfs mount -t debugfs none /sys/kernel/debug 3. user space path #
Name:dwc_usb_3_0_device Version:4.00b ECCN:5E991/NLR STARs:Open and/or Closed STARs myDesignWare:Subscribe for Notifications Product Type:DesignWare Cores Overview:Product Overview Website Documentation: Show Documents... Toolsets:Qualified Toolsets ...
dwc3_core_exit/init only during host mode system_suspend/ resume to addresses power regression from above mentioned patch and also allow USB session to stay connected across runtime_suspend/resume in host mode. While at it also replace existing checks for HOST only dr_mode with current_dr_...
dwc3是DesignWare USB 3.0控制器驱动程序,而fc000000.usb可能是该控制器在系统中的设备地址或标识符。ep0out是USB设备的一个特殊端点,用于控制传输,包括设备配置和状态查询。 列举可能导致该错误信息出现的常见原因 硬件问题:USB控制器或连接的USB设备可能存在物理损坏。 驱动问题:dwc3驱动程序可能存在bug,或者与当前...
The flow from function dwc3_gadget_ep_dequeue() is not easy to follow. Refactor it for easier read. No functional change in this commit. Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>noble...
After recent kernel update, USB3.0 ports no longer work, There is an error printed in kernel log. [ 2.826383] phy phy-ff800000.phy.6: phy poweron failed --> -110 [ 2.827119] dwc3 fe900000.usb: error -ETIMEDOUT: failed to initialize core [ 2.827881] dwc3:
Description:USB 3.0 PHY, SMIC 40LL25 x1 Name:dwc_usb3phy_otg-smic40ll-x1 Version:2.05c ECCN:5E991/NLR STARs:Open and/or Closed STARs myDesignWare:Subscribe for Notifications Product Type:DesignWare Cores Overview:Product Overview Website ...
* Taken from Linux Kernel v3.19-rc1 (drivers/usb/dwc3/core.c) and ported * to uboot.* * commit cd72f890d2 : usb: dwc3: core: enable phy suspend quirk on non-FPGA */ #include <clk.h> #include <cpu_func.h> #include <malloc.h> #include <dwc3-uboot.h> #...