I think my serial port(on board) is not working ......
because when I am running same code on two machines its working good....but when my system comes into picture ....it doesnt show any output comming from serial port..........
can anybody tell me how to configure my serial port.........or to... (16 Replies)
Hi,
I am working with solaris 9,SUN-Blade-100 and I want to communicate with the Serial port.To check whether the port is working or not.I write code and when I execute the file,then I got the output--
According to this,serial port is not found.can anyone please tell me how to configure the... (1 Reply)
I have a need to determine when a string has been completely sent via a serial port from a standard 'C' application. The code is as follows:
SerialPort_Send = open (pPortString, O_WRONLY | O_NOCTTY | O_NONBLOCK);
write (SerialPort_Send, pCommandString, strlen (pCommandString));
... (2 Replies)
Hi,
How can i configure my modem in AIX thru serial port (sa0-->tty0)
I have two port serial card configured as sa0
I created tty1 which port is tty0 and which port is tty1 how can i know?? (1 Reply)
A neighbour's Ubuntu 10.04 machine has five serial ports, one on the motherboard and four on a PCI card. However, only four cards are showing:
# dmesg | grep tty
console enabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
00:08: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
... (2 Replies)
Hi,
I have a external board connected to my serial port. I need to execute "shutdown -r now" command when system boot up. When system boots up it requires a username ans password. Then I need to run my command. I can use rc script but that is rebooting system before it asks for username and... (0 Replies)
Hi Everyone,
In my environment, I have few T5220. On the iLOM Management Card, I have both Network and Serial port are cabled, I don't have any issues while I try to connect using Network Management port, but when I try to connect the serial port for the same server which is actually connected... (3 Replies)
hello all,
please any one can provide me the shell script to write data to /dev/ttyS1
and read responce from /dev/ttyS1 and compare the responce to some string ..
thnxx
---------- Post updated at 03:35 PM ---------- Previous update was at 11:46 AM ----------
any body help me..
how do i... (1 Reply)
Hello,
I have an unloaded T5140 machine and want to access the ILOM for the first time and subsequently the network port after that., and then load Solaris 10 the final January 2011 build.
The first part is what confuses me -the cabling.
I am coming from a Windows machine (w/appropriate... (5 Replies)
Discussion started by: joboy
5 Replies
LEARN ABOUT MINIX
setbuf
SETBUF(3) Library Functions Manual SETBUF(3)NAME
setbuf, setvbuf - assign buffering to a stream
SYNOPSIS
#include <stdio.h>
int setbuf(FILE *stream, char *buf)
int setvbuf(FILE *stream, char *buf, int type, size_t size)
DESCRIPTION
The three types of buffering available are unbuffered, block buffered, and line buffered. When an output stream is unbuffered, information
appears on the destination file or terminal as soon as written; when it is block buffered many characters are saved up and written as a
block; when it is line buffered characters are saved up until a newline is encountered or input is read from stdin. Fflush (see fclose(3))
may be used to force the block out early. Normally all files are block buffered. A buffer is obtained from malloc(3) upon the first getc
or putc(3) on the file. If the standard stream stdout refers to a terminal it is line buffered. The standard stream stderr is always
unbuffered.
Setbuf is used after a stream has been opened but before it is read or written. The character array buf is used instead of an automati-
cally allocated buffer. If buf is the constant pointer NULL, input/output will be completely unbuffered. A manifest constant BUFSIZ tells
how big an array is needed:
char buf[BUFSIZ];
Setvbuf, an alternate form of setbuf, is used after a stream has been opened but before it is read or written. It has three uses, depend-
ing on the value of the type argument:
setvbuf(stream, buf, _IOFBF, size)
Causes input/output to be fully buffered using the character array buf whose size is determined by the size argument. If buf is the
constant pointer NULL, then an automatically allocated buffer will be used.
setvbuf(stream, buf, _IOLBF, size)
Like above, except that output will be line buffered, i.e. the buffer will be flushed when a newline is written, the buffer is full,
or input is requested.
setvbuf(stream, buf, _IONBF, size)
Causes input/output to be completely unbuffered. Buf and size are ignored.
A file can be changed between unbuffered, line buffered, or block buffered by using freopen (see fopen(3)) followed by the appropriate
setvbuf call.
SEE ALSO fopen(3), getc(3), putc(3), malloc(3), fclose(3), puts(3), printf(3), fread(3).
4th Berkeley Distribution May 12, 1986 SETBUF(3)