Hi! I've got a problem with reading from serial port, when I run this code on Digi ConnectCore Wi-9c. But writing to serial port is Ok. By the way, when I'm running this code on "full" Linux it is working Ok - I can read and write to serial without mistakes. Where is a problem?
uname -a: Linux ccw9cjsnand 2.6.17.7-fs.1 #7 PREEMPT Sat Jul 16 23:31:41 EEST 2011 armv5tejl unknown
How can 'popen()' be used for reading and writing to opening pipe?
If i try 'popen("prog", "rw")'
and then put and get chars - it does
not work.
What is wrong? (1 Reply)
I have tried to show the file name whose size is greater than 200 byte in current directory.
Please help me.
ls -l | tr -s " " " " | cut -f 5,9 -d " " >out.txt
#set -a x `cat out.txt`
i=0
`cat out.txt` | while
do
read x
echo $x
#re=200
j=0
if }" < "200" ]
then
echo $j
j=`expr $j... (2 Replies)
I need to find all the files that have group Read or Write permission or files that have user write permission.
This is what I have so far:
find . -exec ls -l {} \; | awk '/-...rw..w./ {print $1 " " $3 " " $4 " " $9}'
It shows me all files where group read = true, group write = true... (5 Replies)
Hi all,
I have a problem with some read/write functions.
I have a .bin file which contains a lot of structures as follows:
struct alumno
{
char id;
char apellido1;
char apellido2;
char nombre;
float nota1p;
float nota2p;
float notamedia;
char photofilename;
};
What I have... (3 Replies)
Hi,
We have smb client running on two of the linux boxes and smb server on another linux system. During a backup operation which uses smb, read of a file was allowed while write to the same file was going on.Also simultaneous writes to the same file were allowed.Following are the settings in the... (1 Reply)
hi
am newbie to unix and socket programing
I am trying to figuring out syntax for read and write
to send data from server to client and client can read it
I have to send two integers
write(newsockfd,buffer,"%d %d",x,y,0) writing from client where x and y are two integers..
... (7 Replies)
HI
I need to implement a client/server TCP application. the customer is the client and the bartender is the server.
When the customer enter the Bar, client connects to the server
Server should reply the client immediately. Other wise if the server is busy, it should send an update message... (10 Replies)
Hi,
I have been trying to capture console logs from the init script.
When the ramfs is mounted, i check if usb is connected , if conncted, i mount it and redirected the console logs like so:
cat & /dev/ttyS1 >> /mnt/logs.txt
I'm getting
/bin/sh : /dev/ttyS1 :permission denied
... (8 Replies)
I have got a file in following format:
AAAAAAA
BBBBBBBB
CCCCCCC
DDDDDDD
I am trying to read this file and out put it in following format:
AAAAAAA,BBBBBBB,CCCCCCC,DDDDDD
Preferred method is shell or Perl.
Any help appreciated. (11 Replies)
Can someone help me to write this program in C in QNX?
Using the FIFO queues write a simple communication system consisting of programs write and read. The program write the parameters given strings enclosed in single quotes. These strings are written to the FIFO file. Reads the program read... (1 Reply)