outsource from india chennai india programmers freelance php coder freelance outsource scripts programming complicated perl patterns php module installation
outsource from india perl installation and configuration php installation linux system administration US$15,US$19,US$11,US$10 cheap programmer
india outsource outsource india chennai india programmers php perl mysql freelance freelance programmer
SHOWCASE of php and perl scripts CONTACT US for php custom perl scripts
HOME
 
The Linux 2.4 SCSI subsystem HOWTO
PrevAppendix E. Compile options and System calls including ioctlsNext

E.3. sr driver

E.3.1. sr compile options

None.

E.3.2. sr ioctls and user interface

See the following files: 

/usr/src/linux/include/linux/cdrom.h
/usr/src/linux/drivers/cdrom/cdrom.c [revision history section]
/usr/src/linux/Documentation/cdrom/cdrom-standard.tex

Some of the following ioctls are described in cdrom-standard.tex : 

CDROMCLOSETRAY
CDROM_SET_OPTIONS
CDROM_CLEAR_OPTIONS
CDROM_SELECT_SPEED
CDROM_SELECT_DISC
CDROM_MEDIA_CHANGED
CDROM_DRIVE_STATUS
CDROM_CHANGER_NSLOTS
CDROM_LOCKDOOR
CDROM_DEBUG
CDROM_GET_CAPABILITY
DVD_READ_STRUCT
DVD_WRITE_STRUCT
DVD_AUTH
CDROM_SEND_PACKET
CDROM_NEXT_WRITABLE
CDROM_LAST_WRITTEN

The O_NONBLOCK flag on the open() of scd devices is important. Without it the open() will wait until there is media in the device before returning. 

open()          O_NONBLOCK
close()
read()
write()
ioctl()

PrevHomeNext
sd driverUpst driver

Linux HOWTO full list
   This document, LDP HOWTO-INDEX, is copyrighted (c) 1995 - 2002 by Tim Bynum, Guylhem Aznar, Joshua Drake and Greg Ferguson. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is available at http://www.gnu.org/copyleft/fdl.html. If you have questions, please contact the LDP.
Web Design Copyright © 1999-2003. Chrisranjana Software Solutions Pvt Ltd. syndicate rss feed