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Full Discussion: Help translate code
Top Forums UNIX for Dummies Questions & Answers Help translate code Post 302491049 by jokerper on Wednesday 26th of January 2011 03:10:39 PM
Old 01-26-2011
Question Help translate code
Hi, all of you!!!

I have this code and I won to build-in some more code.

I know this is a lot of code.
Code:
if [ ! -z $1 ] ; then
                if [ -x "$1"/etc/rc.sysinit ] ; then
                        SYSROOT="$1"
                        S_SCRIPT="cd $1 ; ./etc/rc.sysinit 2>&1 &"
                fi
        else
                for SYSROOT in ${1:- \
                        /dtv/usb/sd*/SamyGO \
                        /dtv/usb/sd*/*/SamyGO \
                        /dtv/usb/sd*/*/*/SamyGO \
                        /mtd_tlib/SamyGO \
                        /mtd_tlib/*/SamyGO \
                        /mtd_tlib/*/*/SamyGO \
                        /mtd_down/SamyGO \
                        /mtd_contents/SamyGO \
                        /mtd_rwcommon/SamyGO \
                        /mtd_wiselink/SamyGO} ; do
                        if [ -x $SYSROOT/etc/rc.sysinit ] ; then
                                S_SCRIPT="cd $SYSROOT ; ./etc/rc.sysinit 2>&1 &"
                                break
                                # if no extension installed try telnet
                        elif [ -x /etc/telnetd_start.sh ] ; then
                                S_SCRIPT="/etc/telnetd_start.sh &"
                        else
                                echo "rc script not found in $SYSROOT"
                                # this should work on A and C series if we shipp busybox
                                # /etc/telnetd_start.sh isn't existent?
                                if [ `cat /proc/mounts | grep -c "devpts"` -gt "0" ] ; then
                                        echo "devpts is mounted, nothing to do"
                                else
                                        # hope this won't break boot process
                                        mount -n -t devpts devpts /dev/pts
                                fi
                                # this isn't realy supported for now
                                # busybox telnetd forks perse, but who knows...
                                S_SCRIPT="$SYSROOT/bin/busybox telnetd 2>&1 &"
                                # TV has no nic -> first get usb wifi working
                                #       # T-RBYDEU -> no telnet start script, has inetd
                                #       ifconfig lo 127.0.0.1
                                #       # hmm
                                #       mount -t devpts devpts /dev/pts
                                #       S_SCRIPT="/usr/sbin/inetd >/dev/null 2>&1 &"
                        fi
                done

I won to build this code into the SYSROOT:
Code:
if [ -d /dtv/usb/sda/smb/192.168.0.100/Qbackup/mtd_tlib/GGame ] ; then
SYSROOT="/dtv/usb/sda/smb/192.168.0.100/Qbackup/mtd_tlib/GGame/SamyGO"
else

so it works with this:
Code:
echo "SYSROOT=\"$SYSROOT\"" > /dtv/SGO.env

I hope you understand my question!
 

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LEARN ABOUT NETBSD

lg3303

DTVIIC(4)						   BSD Kernel Interfaces Manual 						 DTVIIC(4)

NAME

     dtviic, au8522, cx24227, lg3303, mt2131, nxt2k, zl10353, tvpll, xc3028, xc5k -- Inter IC (I2C) modules for DTV

DESCRIPTION

     The dtviic modules provide support for dtv(4) devices.  The dtviic module group includes tuners, demodulators, and analog video decoders.

     The usual hardware structure consists of a host controller (connected for instance via usb(4) or pci(4)) that provides the data moving facil-
     ities (for the analog or digital video streams) and an iic(4) bus over which the other chips can be configured.

     For example, a typical dtv(4) setup would look like this:

	   1.	Initialize transport stream (TS) port on the host controller.

	   2.	Configure the demodulator that ``demodulates'' the information from an intermediate frequency (IF) that is provided to it by the
		associated tuner.  This step typically includes setting the desired quadrature amplitude modulation (QAM) and bandwidth, among
		other things.

	   3.	Configure the tuner.  Typically this step includes at least setting the frequency.

	   4.	Start TS transfer (using DMA transfers or USB high speed transfers).

     The supported demodulators include:

	   au8522      Auvitek AU8522 ATSC/QAM64/QAM256 demodulator

	   cx24227     Conexant CX24227 ATSC/QAM64/QAM256 demodulator

	   lg3303      LG LGDT3303 ATSC/QAM64/QAM256 demodulator

	   mt2131      MicroTune MT2131 ATSC demodulator

	   nxt2k       NxtWave Communications NXT2004 ATSC demodulator

	   zl10353     Zarlink ZL10353 (Intel CE623x) COFDM/DVB-T demodulator

     The supported tuners are:

	   tvpll       Generic PLL-based tuners

	   xc3028      XCeive XC3028 analog and digital tuner

	   xc5k        Xceive XC5000 analog and digital tuner

FILES

	   o   dvb-fe-nxt2004.fw needed by nxt2k

	   o   xc3028-v27.fw or xc3028L-v36.fw (provided by pkgsrc/sysutils/xc3028l-firmware) needed by xc3028

	   o   dvb-fe-xc5000-1.6.114.fw needed by xc5k, provided by the pkgsrc/sysutils/xc5k-firmware

SEE ALSO

     dtv(4), iic(4), module(7)

HISTORY

     The dtviic modules first appeared in NetBSD 6.0.

AUTHORS

     Authors include Jared D. McNeill <jmcneill@NetBSD.org>, Jonathan A. Kollasch <jakllsch@NetBSD.org>, and Jukka Ruohonen <jruohonen@iki.fi>.

BSD
								  August 30, 2011							       BSD
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