Tapan, Here is a typical answer from the 537 driver with $ stty -F /dev/modem -a [philippe@victor intel-536-537]$ stty -F /dev/modem -a speed 115200 baud; rows 0; columns 0; line = 0; intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0; -parenb -parodd cs8 hupcl -cstopb cread clocal -crtscts -ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff -iuclc -ixany -imaxbel -iutf8 opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke The $ stty -F /dev/modem -a issued from your computer returns the third time: speed 19200 baud; rows 0; columns 0; line = 0; intr =<undef>; quit =<undef>; erase =<undef>; kill =<undef>; eof =<undef>; eol =<undef>; eol2 =<undef>; swtch =<undef>; start = ^Q; stop = ^S; susp =<undef>; rprnt =<undef>; werase =<undef>; lnext =<undef>; flush =<undef>; min = 1; time = 0; -parenb -parodd cs8 -hupcl -cstopb cread clocal -crtscts ignbrk -brkint ignpar -parmrk -inpck -istrip -inlcr -igncr -icrnl -ixon -ixoff -iuclc -ixany -imaxbel -iutf8 -opost -olcuc -ocrnl -onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 -isig -icanon -iexten -echo -echoe -echok -echonl -noflsh -xcase -tostop -echoprt -echoctl -echoke Could you check the following: $ cd intel-536-537/ $ sudo make uninstall $ reboot after reboot: $ ls -l /dev/modem Thank you in advance. - http://vouters.dyndns.org:8080/ Philippe Vouters (Fontainebleau/France) Le vendredi 03 juillet 2009 à 19:21 +0200, Philippe Vouters a écrit : > Dear Tapan, > > Our last test will be with 8250.nr_uarts=1 for your kernel boot > parameters in /etc/grub/grub.conf, if you haven't already done so. > Then you reboot, you retry once the $ stty -F /dev/modem -a and > afterwards you send me your /var/log/messages. > Warmest regards, > - > http://vouters.dyndns.org:8080/ > Philippe Vouters (Fontainebleau/France) > > > Le vendredi 03 juillet 2009 à 22:36 +0530, Tapan Chugh a écrit : > > On 07/03/2009 06:29 PM, Philippe Vouters wrote: > > > Dear Tapan, > > > > > > So far it looks goods. > > > > > > As an aside subject, you have this message: > > > " > > > WARNING: Deprecated config file /etc/modprobe.conf, all config files > > > belong into /etc/modprobe.d/. > > > " > > > To avoid this message, you might try performing the following: > > > $ mv /etc/modprobe.conf /etc/modprobe.d/ > > > > > > Perform as a beginning the following command: > > > $ sudo lsof | grep 537ep > > > > > > With the software I am running on my computer and the 536ep driver, I > > > can read the following: > > > > > > [philippe@victor ~]$ sudo lsof | grep 536ep > > > lsof: WARNING: can't stat() fuse.gvfs-fuse-daemon file > > > system /home/philippe/.gvfs > > > Output information may be incomplete. > > > faxgetty 2188 uucp 7u CHR 240,1 0t0 > > > 8135 /dev/536ep > > > > > > Providing lsof returns nothing, attempt: > > > On one terminal > > > $ tail -f /var/log/messages > > > On another terminal > > > $ stty -F /dev/modem -a > > > > > > Providing you a correct response with a kernel oops, download efax.zip > > > from http://vouters.dyndns.org:8080/Intel/ and > > > $ unzip -aa efax.zip > > > $ cd efax > > > $ make -f Makefile.orig > > > $ ./efax -vewinchmart > > > > > > And you send me the output of each above command until failure or > > > success. > > > - > > > http://vouters.dyndns.org:8080/ > > > Philippe Vouters (Fontainebleau/France) > > > > > > > > > > > > > > All going well. > > Step 1 > > > > $ sudo lsof | grep 537ep > > output nothing(excluding the gvfs stuff) > > > > $ tail -f /var/log/messages > > $ stty -F /dev/modem -a > > output: > > stty: /dev/modem bad address > > tail -f /var/log/messages > > Jul 3 22:24:27 localhost kernel: Can't initialize modem h/w > > > > the same stty command again > > kernel oop > > > > /var/log/messages > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:------------[ cut here ]------------ > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:------------[ cut here ]------------ > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:invalid opcode: 0000 [#1] SMP > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:invalid opcode: 0000 [#1] SMP > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:last sysfs file: /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/devnum > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:last sysfs file: /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/devnum > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:Process stty (pid: 12379, ti=f0ae0000 task=c2043280 task.ti=f0ae0000) > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:Process stty (pid: 12379, ti=f0ae0000 task=c2043280 task.ti=f0ae0000) > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:Stack: > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:Stack: > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: 00000000 fae30ce6 00000000 00003052 00001543 30001543 ffffffff 000000ff > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: 00000000 fae30ce6 00000000 00003052 00001543 30001543 ffffffff 000000ff > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: f0ae1e4c fab55b9b c5042000 c5042000 c8d41380 c5042000 c5042000 f0ae1e58 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: f0ae1e4c fab55b9b c5042000 c5042000 c8d41380 c5042000 c5042000 f0ae1e58 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:Call Trace: > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:Call Trace: > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<fab5962b>] ? modem_init+0x23b/0x250 [Intel537] > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<fab5962b>] ? modem_init+0x23b/0x250 [Intel537] > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<fab59637>] ? modem_init+0x247/0x250 [Intel537] > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<fab59637>] ? modem_init+0x247/0x250 [Intel537] > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<fab55b9b>] ? open+0xcb/0x1b0 [Intel537] > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<fab55b9b>] ? open+0xcb/0x1b0 [Intel537] > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<fab58ae1>] ? softserial_open+0x141/0x160 [Intel537] > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<fab58ae1>] ? softserial_open+0x141/0x160 [Intel537] > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c05cabe5>] ? tty_open+0x281/0x3a0 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c05cabe5>] ? tty_open+0x281/0x3a0 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04aaaf1>] ? chrdev_open+0x11e/0x135 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04aaaf1>] ? chrdev_open+0x11e/0x135 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04a6d43>] ? __dentry_open+0x116/0x1f9 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04a6d43>] ? __dentry_open+0x116/0x1f9 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04a6ece>] ? nameidata_to_filp+0x32/0x47 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04a6ece>] ? nameidata_to_filp+0x32/0x47 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04aa9d3>] ? chrdev_open+0x0/0x135 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04aa9d3>] ? chrdev_open+0x0/0x135 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04b0ea6>] ? do_filp_open+0x34c/0x5e9 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04b0ea6>] ? do_filp_open+0x34c/0x5e9 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c042149f>] ? default_spin_lock_flags+0x8/0xd > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c042149f>] ? default_spin_lock_flags+0x8/0xd > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c05682a1>] ? strncpy_from_user+0x38/0x54 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c05682a1>] ? strncpy_from_user+0x38/0x54 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04b8e23>] ? alloc_fd+0xd0/0xdc > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04b8e23>] ? alloc_fd+0xd0/0xdc > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04a6b4a>] ? do_sys_open+0x47/0xbc > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04a6b4a>] ? do_sys_open+0x47/0xbc > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04a6c0b>] ? sys_open+0x23/0x2b > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c04a6c0b>] ? sys_open+0x23/0x2b > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c040945f>] ? sysenter_do_call+0x12/0x34 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel: [<c040945f>] ? sysenter_do_call+0x12/0x34 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:Code: c3 00 00 00 8d b0 00 00 00 40 c1 ee 0c c1 e6 05 03 35 80 80 a0 c0 8b 06 f6 c4 40 74 03 8b 76 0c 8b 06 84 c0 78 15 f6 c4 60 75 04<0f> 0b eb fe 89 f0 e8 a0 3f fe ff e9 8c 00 00 00 8b 5e 0c 8b 55 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:Code: c3 00 00 00 8d b0 00 00 00 40 c1 ee 0c c1 e6 05 03 35 80 80 a0 c0 8b 06 f6 c4 40 74 03 8b 76 0c 8b 06 84 c0 78 15 f6 c4 60 75 04<0f> 0b eb fe 89 f0 e8 a0 3f fe ff e9 8c 00 00 00 8b 5e 0c 8b 55 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:EIP: [<c04a2851>] kfree+0x40/0xe4 SS:ESP 0068:f0ae1df0 > > > > Message from syslogd@localhost at Jul 3 22:24:27 ... > > kernel:EIP: [<c04a2851>] kfree+0x40/0xe4 SS:ESP 0068:f0ae1df0 > > Jul 3 22:24:27 localhost kernel: Can't initialize modem h/w > > Jul 3 22:24:27 localhost kernel: ------------[ cut here ]------------ > > Jul 3 22:24:27 localhost kernel: kernel BUG at mm/slub.c:2754! > > Jul 3 22:24:27 localhost kernel: invalid opcode: 0000 [#1] SMP > > Jul 3 22:24:27 localhost kernel: last sysfs file: /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/devnum > > Jul 3 22:24:27 localhost kernel: Modules linked in: Intel537 fuse ipt_MASQUERADE iptable_nat nf_nat sco bridge stp llc bnep l2cap bluetooth sunrpc ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput snd_hda_codec_idt ppdev pcspkr snd_hda_intel parport_pc snd_hda_codec snd_hwdep iTCO_wdt iTCO_vendor_support snd_pcm snd_timer snd e100 mii soundcore snd_page_alloc i2c_i801 parport ata_generic pata_acpi i915 drm i2c_algo_bit i2c_core video output [last unloaded: Intel537] > > Jul 3 22:24:27 localhost kernel: > > Jul 3 22:24:27 localhost kernel: Pid: 12379, comm: stty Not tainted (2.6.29.5-191.fc11.i686.PAE #1) > > Jul 3 22:24:27 localhost kernel: EIP: 0060:[<c04a2851>] EFLAGS: 00210246 CPU: 0 > > Jul 3 22:24:27 localhost kernel: EIP is at kfree+0x40/0xe4 > > Jul 3 22:24:27 localhost kernel: EAX: 40040000 EBX: ffffffff ECX: f334f1c0 EDX: 00000000 > > Jul 3 22:24:27 localhost kernel: ESI: c11e5700 EDI: cf2b8000 EBP: f0ae1e04 ESP: f0ae1df0 > > Jul 3 22:24:27 localhost kernel: DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 > > Jul 3 22:24:27 localhost kernel: Process stty (pid: 12379, ti=f0ae0000 task=c2043280 task.ti=f0ae0000) > > Jul 3 22:24:27 localhost kernel: Stack: > > Jul 3 22:24:27 localhost kernel: fab5962b 00200286 ffffffff 00000000 c8d41380 f0ae1e30 fab59637 fae34d04 > > Jul 3 22:24:27 localhost kernel: 00000000 fae30ce6 00000000 00003052 00001543 30001543 ffffffff 000000ff > > Jul 3 22:24:27 localhost kernel: f0ae1e4c fab55b9b c5042000 c5042000 c8d41380 c5042000 c5042000 f0ae1e58 > > Jul 3 22:24:27 localhost kernel: Call Trace: > > Jul 3 22:24:27 localhost kernel: [<fab5962b>] ? modem_init+0x23b/0x250 [Intel537] > > Jul 3 22:24:27 localhost kernel: [<fab59637>] ? modem_init+0x247/0x250 [Intel537] > > Jul 3 22:24:27 localhost kernel: [<fab55b9b>] ? open+0xcb/0x1b0 [Intel537] > > Jul 3 22:24:27 localhost kernel: [<fab58ae1>] ? softserial_open+0x141/0x160 [Intel537] > > Jul 3 22:24:27 localhost kernel: [<c05cabe5>] ? tty_open+0x281/0x3a0 > > Jul 3 22:24:27 localhost kernel: [<c04aaaf1>] ? chrdev_open+0x11e/0x135 > > Jul 3 22:24:27 localhost kernel: [<c04a6d43>] ? __dentry_open+0x116/0x1f9 > > Jul 3 22:24:27 localhost kernel: [<c04a6ece>] ? nameidata_to_filp+0x32/0x47 > > Jul 3 22:24:27 localhost kernel: [<c04aa9d3>] ? chrdev_open+0x0/0x135 > > Jul 3 22:24:27 localhost kernel: [<c04b0ea6>] ? do_filp_open+0x34c/0x5e9 > > Jul 3 22:24:27 localhost kernel: [<c042149f>] ? default_spin_lock_flags+0x8/0xd > > Jul 3 22:24:27 localhost kernel: [<c05682a1>] ? strncpy_from_user+0x38/0x54 > > Jul 3 22:24:27 localhost kernel: [<c04b8e23>] ? alloc_fd+0xd0/0xdc > > Jul 3 22:24:27 localhost kernel: [<c04a6b4a>] ? do_sys_open+0x47/0xbc > > Jul 3 22:24:27 localhost kernel: [<c04a6c0b>] ? sys_open+0x23/0x2b > > Jul 3 22:24:27 localhost kernel: [<c040945f>] ? sysenter_do_call+0x12/0x34 > > Jul 3 22:24:27 localhost kernel: Code: c3 00 00 00 8d b0 00 00 00 40 c1 ee 0c c1 e6 05 03 35 80 80 a0 c0 8b 06 f6 c4 40 74 03 8b 76 0c 8b 06 84 c0 78 15 f6 c4 60 75 04<0f> 0b eb fe 89 f0 e8 a0 3f fe ff e9 8c 00 00 00 8b 5e 0c 8b 55 > > Jul 3 22:24:27 localhost kernel: EIP: [<c04a2851>] kfree+0x40/0xe4 SS:ESP 0068:f0ae1df0 > > Jul 3 22:24:27 localhost kernel: ---[ end trace 0422f40dc556bb32 ]--- > > > > then stty all ok > > > > speed 19200 baud; rows 0; columns 0; line = 0; > > intr =<undef>; quit =<undef>; erase =<undef>; kill =<undef>; eof =<undef>; > > eol =<undef>; eol2 =<undef>; swtch =<undef>; start = ^Q; stop = ^S; > > susp =<undef>; rprnt =<undef>; werase =<undef>; lnext =<undef>; > > flush =<undef>; min = 1; time = 0; > > -parenb -parodd cs8 -hupcl -cstopb cread clocal -crtscts > > ignbrk -brkint ignpar -parmrk -inpck -istrip -inlcr -igncr -icrnl -ixon -ixoff > > -iuclc -ixany -imaxbel -iutf8 > > -opost -olcuc -ocrnl -onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 > > -isig -icanon -iexten -echo -echoe -echok -echonl -noflsh -xcase -tostop -echoprt > > -echoctl -echoke > > > > /var/log/messages nothing > > > > next i download efax from your site > > > > make -f Makefile.orig > > gcc -O3 -D__USE_MISC -fshort-wchar -c efax.c > > gcc -O3 -D__USE_MISC -fshort-wchar -c efaxlib.c > > gcc -O3 -D__USE_MISC -fshort-wchar -c efaxio.c > > gcc -O3 -D__USE_MISC -fshort-wchar -c efaxos.c > > gcc -O3 -D__USE_MISC -fshort-wchar -c efaxmsg.c > > gcc -o efax efax.o efaxlib.o efaxio.o efaxos.o efaxmsg.o > > gcc -O3 -D__USE_MISC -fshort-wchar -c efix.c > > gcc -o efix efix.o efaxlib.o efaxmsg.o > > > > > > $ ./efax -vewinchmart > > ./efax: Fri Jul 3 22:25:59 2009 efax v 0.9a-001114 Copyright 1999 Ed Casas > > ./efax: Fri Jul 3 22:25:59 2009 efax v 0.9a-001114 Copyright 1999 Ed Casas > > efax: 25:59 compiled Jul 3 2009 22:25:43 > > efax: 25:59 argv[0]=./efax > > efax: 25:59 argv[1]=-vewinchmart > > efax: 25:59 using built-in 128x0 font > > efax: 25:59 opened /dev/modem > > efax: 25:59 command "Q0V1" > > efax: 25:59 waiting 2.0 s > > > > so far it has been running for about 5 minutes and nothing has happened > > > > then again the lsof command > > > > efax 12526 tapan 3u CHR 240,1 0t0 139926 /dev/537ep > > > > > > > > > > > > > > > > > >