Login or Register to Ask a Question and Join Our Community


how to write data into a device file?

 
Thread Tools Search this Thread
Special Forums Hardware how to write data into a device file?
# 1  
Old 08-02-2010
how to write data into a device file?

Hi,
I am working in device drivers. I am new to device drivers. i have invoked chardev.c.
the driver is insmoded. now i want to write something into this and i want to look what i have written. but i don't know how to write and see. please help me
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Compare 2 text file with 1 column in each file and write mismatch data to 3rd file

Hi, I need to compare 2 text files with around 60000 rows and 1 column. I need to compare these and write the mismatch data to 3rd file. File1 - file2 = file3 wc -l file1.txt 58112 wc -l file2.txt 55260 head -5 file1.txt 101214200123 101214700300 101250030067 101214100500... (10 Replies)
Discussion started by: Divya Nochiyil
10 Replies

2. Shell Programming and Scripting

Write out specific data from log to a new file

I got a huge log in zipped files, i need to write out lines by specific data and if the line with the same contains XML message with the same sessionID will be written to the file to. The log structure: 2013-08-16 16:31:06,810 ( 122: rogate) INFO - UId:10453, GId:5422: new... (16 Replies)
Discussion started by: batka
16 Replies

3. Shell Programming and Scripting

Extract data from XML file and write in CSV file

Hi friend i have input as following XML file <?xml version="1.0"?> <Document xmlns="urn:iso:std:iso:20022:tech:xsd:camt.054.001.02"> <BkToCstmrDbtCdtNtfctn> <GrpHdr><MsgId>LBP-RDJ-TE000000-130042430010001001</MsgId><CreDtTm>2013-01-04T03:21:30</CreDtTm></GrpHdr>... (3 Replies)
Discussion started by: mohan sharma
3 Replies

4. Shell Programming and Scripting

Write over data to new file

hi..i would ask about how to write over data to new file with BASH. so..assume my data looks like this : 11 12 13 14 15 ...and so on. It's always line by line. and that's for the first file. i want to write over those numbers into second file but by using space. so my second file should be... (5 Replies)
Discussion started by: syalala
5 Replies

5. Shell Programming and Scripting

Unfold the data from a input file and write to a file

I am working on a script to unfold data for each column from a specific line of data and write output in a single line. Input data looks like this. 2011-09-26 INF UM_10 UserMana Starting synchronization for security domain 14:37:31 080 gementSe . rvice I... (2 Replies)
Discussion started by: svajhala
2 Replies

6. Programming

How to write data to file in C?

Hi I want to open a file and write data in the following manner. Header String 1 String 2 String 3 String 4 String 5 ... (4 Replies)
Discussion started by: AAKhan
4 Replies

7. UNIX for Dummies Questions & Answers

Normalize Data and write to a flat file

All, Can anyone please help me with the below scenario. I have a Flat file of the below format. ID|Name|Level|Type|Zip|MAD|Risk|Band|Salesl|Dealer|CID|AType|CValue|LV|HV|DCode|TR|DU|NStartDate|UserRole|WFlag|EOption|PName|NActivationDate|Os|Orig|Cus|OType|ORequired|DType 03|... (10 Replies)
Discussion started by: sp999
10 Replies

8. Shell Programming and Scripting

Read the apecific data from one file and write into another file

Hi, I would like to read the specific data from file and write the data in the new file. My data input is something like this.. <EXROP:R=TJ0311T; ROUTE DATA R ROUTE PARAMETERS TJ0311T DETY=UPDR TTRANS=1 FNC=3 MA=628160955000 R=TJ0311D ... (3 Replies)
Discussion started by: bha148
3 Replies

9. Shell Programming and Scripting

Extract data from an XML file & write into a CSV file

Hi All, I am having an XML tag like: <detail sim_ser_no_1="898407109001000090" imsi_1="452070001000090"> <security>ADM1=????</security> <security>PIN1=????</security> <security>PIN2=????</security> ... (2 Replies)
Discussion started by: ss_ss
2 Replies

10. Shell Programming and Scripting

[BASH] Using a function to write data to a file

Hello, I've created a shell script, which accepts information using an input from the console. Part of the script will write a file containing this information. My code looks like (for the write) function make_file { cat <<- _EOF_ The contents of my file are here _EOF_ } ... (12 Replies)
Discussion started by: cpickering
12 Replies
Login or Register to Ask a Question
UEP(4)							   BSD Kernel Interfaces Manual 						    UEP(4)

NAME
uep -- eGalax touchscreen driver SYNOPSIS
To compile this driver into the kernel, place the following lines into your kernel configuration file: device uep device usb Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): uep_load="YES" DESCRIPTION
The uep driver provides support for the eGalax onscreen touch panels. The driver is stub. It just probes and attaches to USB device, creates device entry and feeds reassambled packets from the hardware to it. To get mouse working in X(7), one needs to install ports/x11-drivers/xf86-input-egalax. BUGS
uep can't act like sysmouse(4), since the latter does not support absolute motion events. FILES
uep creates a blocking pseudo-device file, /dev/uep0. SEE ALSO
usb(4), loader.conf(5), xorg.conf(5) (ports/x11/xorg), egalax(4) (ports/x11-drivers/xf86-input-egalax). AUTHORS
The uep driver was written by Gleb Smirnoff <glebius@FreeBSD.org> BSD
May 25, 2010 BSD

Featured Tech Videos