http://www.bxcqd.com/news/209452.html WebIf nobody has the pipe open for writing, read () will always return 0 bytes and not block. If someone does have the pipe open for writing, though, blocking file descriptors will block …

ioctl(2) - Linux manual page / 1 Using ioctl()

Webstatic long evdev_ioctl_compat (struct file * file, unsigned int cmd, unsigned long arg) {return evdev_ioctl_handler (file, cmd, compat_ptr (arg), 1);} 2.10 总结 从上面的分析不难看出，应用程序读取节点event数据的核心逻辑就是判断 client->packet_head != client->tail 即 client->buffer 不为空，就从buffer中读取event事件。 WebThis manual page describes the Linux networking socket layer user interface. The BSD compatible sockets are the uniform interface between the user process and the network protocol stacks in the kernel. The protocol modules are grouped into protocol families such as AF_INET, AF_IPX, and AF_PACKET, and socket types such as SOCK_STREAM or … rayito vector

第四章——IOCTL（1） - hansenn - 博客园

Web7.1. Introduction ¶. uinput is a kernel module that makes it possible to emulate input devices from userspace. By writing to /dev/uinput (or /dev/input/uinput) device, a process can … WebThe ioctl() API allows the local address to be reused when the server is restarted before the required wait time expires. In this example, it sets the socket to be nonblocking. All of … Web*RFC PATCH 1/6] bus/cdx: introduce cdx bus 2024-01-24 14:07 [RFC PATCH 0/6] add support for CDX bus Nipun Gupta @ 2024-01-24 14:07 ` Nipun Gupta 2024-01-24 14:07 ` [RFC PATCH 2/6] bus/cdx: add dma map and unmap support Nipun Gupta ` (6 subsequent siblings) 7 siblings, 0 replies; 24+ messages in thread From: Nipun Gupta @ 2024-01-24 … rayitec