(1)驱动中调用usb_unlink_urb( )或usb_kill_urb( )主动取消一个已经提交给usb控制器的URB 调用usb_unlink_urb( )之后,URB的status值为-104(ECONNRESET) 调用usb_kill_urb( )之后,URB的status值为-2(ENOENT) (2)当URB已经提交给某个usb设备,但该设备被remove了,硬件断开了,比如将模块从主机上拔掉,这种...
(1)驱动中调用usb_unlink_urb( )或usb_kill_urb( )主动取消一个已经提交给usb控制器的URB 调用usb_unlink_urb( )之后,URB的status值为-104(ECONNRESET) 调用usb_kill_urb( )之后,URB的status值为-2(ENOENT) (2)当URB已经提交给某个usb设备,但该设备被remove了,硬件断开了,比如将模块从主机上拔掉,这种...
97 urb->iso_frame_desc[n].status = -EXDEV; 98 urb->iso_frame_desc[n].actual_length = 0; 99 } 100 } 101 102 /* the I/O buffer must be mapped/unmapped, except when length=0 */ 103 if (urb->transfer_buffer_length > INT_MAX) 104 return -EMSGSIZE; 105 106 #ifdef DEBUG 107...
USB 请求块(USB request block,urb)是 USB 设备驱动中用来描述与 USB 设备通信所用的基本载体和核心数据结构,非常类似于网络设备驱动中的 sk_buff 结构体。 1 urb结构体 定义位于:include\linux\usb.h 1structurb {2/*private: usb core and host controller only fields in the urb*/3structkref kref;/*...
上述结构体中int status;的常用值(in include/asm-generic/errno.h and errno_base.h) : // 0 表示 urb 传送成功*/ //以下各个定义在使用时为负值 #define ENOENT 2 /* urb 被 usb_kill_urb 停止 */ #define ECONNRESET 104 /* urb 被 usb_unlink_urb 去链, 且 transfer_flags 被设为 URB_ASYN...
型号:0805B104K500NT 品牌:FH 封装/规格:0805 ￥0.02014 购买 SDURB1560TR由SMC Diode Solutions设计生产,在华秋商城现货销售,并且可以通过 等渠道进行代购。 SDURB1560TR 价格参考￥ 0.99 。 SMC Diode Solutions SDURB1560TR 封装/规格: TO263, DIODE GEN PURP 600V D2PAK。你可以下载 SDURB1560TR 中文资...
Status 1234rpm 10,4A 1(0) 43,5Hz GLCP 分为四个功能组 1. 带有状态行的图形显示器. 2. 菜单键和指示灯 (LED) - 用于选择模式,更改参 数和切换显示功能. 3. 导航键和指示灯 (LED). 4. 操作键和指示灯 (LED). 图形显示器 LCD 显示器带有背光,它总共可以显示 6 行字...
2.DIsplay machine operating status Software programming interface Change LED the first component coordinates, the rest coordinates of the points will be automatically calculated Software control partial interface Separate debugging module of workbench, can independently control each IO Software Er...
significance(重要性)determination(决心)status(社会身份地位)85.accurate(准确,精确)urgent(急迫,要紧的) adequate(充足的,适当的)excessive(过度,过量的)86.go into(进入,参加,调查)go back on(违背诺言)go through(经历,查找)go alone with(与某人相处)87.eter to(参考) ...
After upgrading my Galaxy A51 from Android 10 to Android 11, it has started periodically (or randomly) killing my two XMPP client apps, yaxim and Bruno, despite both having a permanent (and visible) foreground service notification. Ironi...