After going through the stikies I have collected the following logs.
1. As my wireless network adapter is on pci bus
linux-1yoz:~ # lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02)
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02)
02:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express (rev 02)
03:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter (rev 01)
0a:06.0 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02)
0a:06.2 SD Host controller: O2 Micro, Inc. Integrated MMC/SD Controller (rev 02)
0a:06.3 Mass storage controller: O2 Micro, Inc. Integrated MS/xD Controller (rev 01)
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I found the wireless card in the above list.
2. Kernel log messeges.
I tried to attach the log file but i couldn't find the attachment option here. so I am pasting the usefull information got from the logs first and then I m pasting the whole logs.
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useful info from logs
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vendor=8086 device=27d2
ath5k_pci 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
ath5k_pci 0000:03:00.0: setting latency timer to 64
ath5k_pci 0000:03:00.0: registered as 'phy0'
ath5k phy0: Support for RF2425 is under development.
sysctl net.netfilter.nf_conntrack_acct=1 to enable it.
[drm] Initialized drm 1.1.0 20060810
pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
pci 0000:00:02.0: setting latency timer to 64
[drm] Initialized i915 1.6.0 20060119 on minor 0
[drm:i915_getparam] *ERROR* Unknown parameter 5
[drm:i915_getparam] *ERROR* Unknown parameter 5
ADDRCONF(NETDEV_UP): eth0: link is not ready
ath5k phy0: gain calibration timeout (2412MHz)
ath5k phy0: unable to reset hardware: -11
ath5k phy0: gain calibration timeout (2412MHz)
ath5k phy0: unable to reset hardware: -11
NET: Registered protocol family 17
bootsplash: status on console 0 changed to on
tg3: eth0: Link is up at 100 Mbps, full duplex.
tg3: eth0: Flow control is on for TX and on for RX.
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
SFW2-INext-DROP-DEFLT IN=eth0 OUT= MAC= SRC=192.168.1.3 DST=224.0.0.251 LEN=260 TOS=0x00 PREC=0x00 TTL=255 ID=0 DF PROTO=UDP SPT=5353 DPT=5353 LEN=240
SFW2-INext-DROP-DEFLT IN=eth0 OUT= MAC= SRC=192.168.1.3 DST=224.0.0.251 LEN=486 TOS=0x00 PREC=0x00 TTL=255 ID=0 DF PROTO=UDP SPT=5353 DPT=5353 LEN=466
SFW2-INext-DROP-DEFLT IN=eth0 OUT= MAC= SRC=192.168.1.3 DST=224.0.0.251 LEN=486 TOS=0x00 PREC=0x00 TTL=255 ID=0 DF PROTO=UDP SPT=5353 DPT=5353 LEN=466
SFW2-INext-DROP-DEFLT IN=eth0 OUT= MAC= SRC=192.168.1.3 DST=224.0.0.251 LEN=486 TOS=0x00 PREC=0x00 TTL=255 ID=0 DF PROTO=UDP SPT=5353 DPT=5353 LEN=466
SFW2-INext-DROP-DEFLT IN=eth0 OUT= MAC= SRC=192.168.1.3 DST=224.0.0.251 LEN=450 TOS=0x00 PREC=0x00 TTL=255 ID=0 DF PROTO=UDP SPT=5353 DPT=5353 LEN=430
eth0: no IPv6 routers present
SFW2-INext-DROP-DEFLT IN=eth0 OUT= MAC= SRC=192.168.1.3 DST=224.0.0.251 LEN=414 TOS=0x00 PREC=0x00 TTL=255 ID=0 DF PROTO=UDP SPT=5353 DPT=5353 LEN=394
SFW2-INext-DROP-DEFLT IN=eth0 OUT= MAC= SRC=192.168.1.3 DST=224.0.0.251 LEN=450 TOS=0x00 PREC=0x00 TTL=255 ID=0 DF PROTO=UDP SPT=5353 DPT=5353 LEN=430
CPU0 attaching NULL sched-domain.
CPU1 attaching NULL sched-domain.
CPU0 attaching sched-domain:
domain 0: span 0-1 level MC
groups: 0 1
domain 1: span 0-1 level NODE
groups: 0-1
CPU1 attaching sched-domain:
domain 0: span 0-1 level MC
groups: 1 0
domain 1: span 0-1 level NODE
groups: 0-1
tg3: eth0: Link is down.
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3. wireless network interface is not getting initialized.
linux-1yoz:~ # iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wmaster0 no wireless extensions.
wlan0 IEEE 802.11bg ESSID:""
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=0 dBm
Retry min limit:7 RTS thr
ff Fragment thr=2352 B
Encryption key
ff
Power Management
ff
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
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4. Scanning is failed on wireless network interface.
linux-1yoz:~ # iwlist scan
lo Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
wmaster0 Interface doesn't support scanning.
wlan0 Interface doesn't support scanning : Network is down