serial converter driver

　　The serial port driver is implemented by the Tty_driver architecture. A function in an application is to manipulate the hardware, first passing through a TTY, and then reaching the driver after a level call. This article first describes the entire process of opening the device's open function in the application.First in the

Linux Driver Development IV (the serial port of hardware knowledge that must be understood) In the previous article, we understand the processor, memory, in this article Lao Xie want to chat with you in the actual project development process of the basic knowledge and role of the serial port.First, the introduction of the

Transplantation of Linux-2.6.32.2 Kernel on mini2440 (18th) --- converting uart2 into a common serial port driver Port Environment (Bold font in redIs the modified content,Blue bold ChineseFor special attention) 1. host environment: centos 5.5 and 1 GB memory in vmare. 2. Integrated Development Environment: Elipse ide 3. compiling environment: Arm-Linux-GCC v4.4.3 and arm-None-Linux-gnueabi-GCC v4.5.1. 4. D

Port Environment (Bold font in redIs the modified content,Blue bold ChineseFor special attention) 1. host environment: centos 5.5 and 1 GB memory in vmare. 2. Integrated Development Environment: Elipse ide 3. compiling environment: Arm-Linux-GCC v4.4.3 and arm-None-Linux-gnueabi-GCC v4.5.1. 4. Development Board: mini2440, 2 m nor flash, 128 m nand Flash. 5, U-boot version: u-boot-2009.08 6, Linux: linux-2.6.32.2 7. References: Complete embedded Linux application development manual, edited by Wei

I have been busy with other things recently. I haven't touched ecos for a long time. These two days are a bit blank. I have to write a serial driver to play with it and verify the interrupted call of ecos. LZ spent two days writing this driver, and encountered a few disgusting problems. later it was found that the previous Foundation was not well prepared. Fortun

I have been busy with other things recently. I haven't touched ECOs for a long time. These two days are a bit blank. I have to write a serial driver to play with it and verify the interrupted call of ECOs. LZ spent two days writing this driver, and encountered a few disgusting problems. later it was found that the previous Foundation was not well prepared. Fortun

Reprint: http://www.linuxidc.com/Linux/2013-11/92639.htmReference:http://blog.csdn.net/lamdoc/article/details/7685896Http://www.linuxidc.com/Linux/2011-07/39521.htm1. TTY DevicesThere are serial port, USB to serial port, modem (traditional Winmodem class equipment) and so on. The core of the Linux-tty driver is immediately below the standard character device

(name, 0, sizeof (wchar) * 32 );Rtlstringcchprintfw (name, 32, l "\ device \ serial % d", ID );Rtlinitunicodestring ( name_str, name );// Open the device object* Status = iogetdeviceobjectpointer ( name_str, file_all_access, fileobj, devobj );// If the file is successfully opened, remember to unreference the file object.If (* status = STATUS_SUCCESS){Obdereferenceobject (fileobj );}// Return the device objectReturn response BJ;} // This function is

The virtual machine is installed in the win8.1, but there is no virtual network card vmnet0 Vmnet1 vmnet8?Unable to change network to bridged state: No host network adapter not bridged?win8.1 how to set up VMware bridging mode Internet?Netbridge.inf don't fit in? VMware Bridge protocol not fit in? Data error?The virtual serial port is not installed? Data error? Workaround:(refer to Win8.1 caution with optimizations that may cause the installation

Date: March 6, 2011 Personal DiaryExample: USB to serial port driver installation and SetupFirst, the USB to the serial Port drive installation CD into the driver, and then find the appropriate installation file installation. (Generally select "304")If the installation fails, you can try to unplug the thread and reinst

The 16c2550 serial port chip can be used to expand two serial ports. Its operation method and register usage are exactly the same as 8250, so we can use the classic 8250 driver in Linux to drive st16c2550. 8250 the driver remains unchanged. You need to add the 16c2550 initialization code. In the initialization code, yo

// Initialize the serial driverPrivate Boolean initcommdriver_win32 (){Try {System. loadlibrary ("win32com ");String drivername = "com. Sun. Comm. win32driver ";Commdriver driver = (commdriver) class. forname (drivername). newinstance ();Driver. initialize ();Return true;} Catch (throwable e ){Messagedialog. openinformation (null, "initdriver", "initdriver_err_wi

After reading the serial port driver for two days, I finally watched the driver of a great god. I wanted to write a blog by myself and suddenly found that it was also the content of the great god, so repost it. Address: http://blog.csdn.net/wulong117/article/details/7378265The serial port

continue, but, to say the truth, from scratch to complete these work, although arduous, but harvest quite abundant, to arm development (especially cortex-m3) understanding is on a level. OK, let's talk about the development of serial port driver. As with Gpio development, we still need to write serial port-related register code in CortexM3.h. struct Cortexm3

1, turn on USB to the serial port installation program; 2, according to the prompts after the installation will eject "drive preinstallation Success" tips; 3, if you open the Device Manager to see the port to find the corresponding device icon or display a yellow exclamation point, it should be the driver and the system has been incompatible with the problem; 4, if thi

[Tutorial on industrial serial port and network software communication platform (SuperIO)] 7. Secondary Development Service driver, network software superioSuperIO data download: Role of http://pan.baidu.com/s/1pJ7lZWf1.1 Service Interface The data collected by the device driver module provides a variety of application services as needed, such as data upload serv

functionStatic void __uart_start (struct tty_struct *tty) { struct uart_state *state = tty- >driver_data; struct uart_port *port = state->uart_port; if (!uart_circ_empty (state->xmit) state->xmit.buf !tty->stopped ! tty->hw_stopped) port->ops->start_tx (port);}　　Here the port is the Uart_port type, and finally arrived at the bottom of the drive, good tired. Again this array, the same set of function operations　　Static structS3c24xx_uart_port S3c24xx_serial_ports[confi

1. Add the following content to the onboard information: A. first enter the kernel/ARCH/ARM/Mach-MSM/board-msm7x30.c In the struct platform_device * devices [] _ initdata {}; Add the variable msm_devices_uart3, Configure the variable struct msm_gpio uart3_config_data [] and configure gpio to the serial port mode. Complete the serial port configuration. Static struct msm_gpio uart3_config_data [] = {{Gp

2440 external serial port driver debugging (Author: wogoyixikexie @ gliet) The previous week, the serial port MDD has been transplanted to BSP, and the three serial ports are already normal, but the external serial ports can only be sent and cannot be received. Later, I foun

Most of the current laptops are no longer equipped with serial ports, and are pre-installed with Microsoft's latest Vista operating system. However, in daily development work, you may encounter serial programming through USB-to-serial data lines in a notebook without a serial port. Through the online search of the solu