Speedtouch USB FAQ Last changes : $Id: FAQ,v 1.14 2002/05/31 22:02:43 edgomez Exp $ General 0.0 I'm confused - there seem to be several speedtouch drivers, which one is this? Configuration 1.1 Which linux kernel version was used to develop this software 1.2 What configurations have been tested? 1.3 Do I need to patch the kernel or pppd? 1.4 What about the HDLC BUG? 1.5 What to do about USB messages 1.6 USB messages are filling up my log. 1.7 I'd like to start my connection when linux is started. How to do that? ISP Settings 2.1 What login should I use for my ISP? 2.2 Which vpi.vci should I use? Known Problems 3.1 I have heard about upload problems. What is the current status? 3.2 Downloads from some web-sites don't work Troubleshooting 4.1 pppd says that there is no PPP support. 4.2 I get the message "ADSL line is blocked?" and modem run just terminates - Why? 4.3 I have seen messages like "usbdevfs: process 833 (pppoa2) did not claim interface 1 before use". 4.4 When I got disconnect by my Internet provider, pppd is unable to reconnect automatically... 4.5 pppoa3 is not closing when a ppp session fails? 4.6 pppd can't load some modules! 4.8 What interesting files I should look at in case of problems? 4.9 My microcode upload has failed! 4.10 I get lot of LCP-Config-Request Timeouts 4.11 I get "USBDEVFS_BULK failed dev 2 ep 0x85 len 512 ret -110" when running modem_run 4.12 Everything seems to work but ifconfig still shows no IP on ppp0 4.13 I can a see a couple of IPs in my logs but I can't browse the web ! 4.14 I've tried everything you said and it still does not work. General ======= 0.0 I'm confused - there seem to be several speedtouch drivers, which one is this? There are two USB Speedtouch drivers available for Linux. For the sake of argument we shall call the "user-mode" and "kernel-mode". This package and documentation refers to the "user-mode" version which is not related to the "kernel-mode" drivers in any way (except we use the managment code to provide the microcode for the modem). Do not mix and match instructions/faqs/howto's between the two projects as you will get very confused (and probably confuse everyone else). If your interested in the kernel-mode version then please see: http://sourceforge.net/project/showfiles.php?group_id=3581 and http://www.linuxdude.co.uk/docs/Alcatel-Speedtouch-USB-mini-HOWTO/speedtouchusb.html Briefly the kernel-mode driver is built into the linux kernel as an ATM device and uses a patched version of pppd to terminate the ATM and give you IP. This means the data spends more time in kernel-mode (which should improve latency). The user-mode driver terminates the USB device in user-space and demangles the ATM into "normal" ppp packets for a normal pppd. Although we recommend some kernel options you generally don't need to patch anything. We of course recommend the user-mode as being easier to set-up but then again we are biased :-) Configuration Questions ======================= 1.1 Which linux kernel version was used to develop this software: linux kernel version 2.4.3 >= 1.2 What configurations have been tested? (and what kernel version is known to work?) See the file results.txt for some systems that have been tested. 2.2.x series : 2.2.17, 2.2.17-21mdk, 2.2.19-5mdk, 2.2.20, 2.2.19 shipped with the debian potato. 2.4.x series : 2.4.0, 2.4.2<->2.4.18 2.5 development series are not supported (because the usb stack changes too much, between each kernel release). If you find a problem with modem_run on a development kernel please re-test with the latest 2.4 stock kernel before asking the list or report the bug to the linux-usb kernel hackers. Kernel older than 2.2.17 does not work Kernel 2.4.1 freezes. 1.3. Does it need kernel patches or pppd patches to work? This solution uses a standard kernel ppp and all the ATM handling is done outside of the kernel. There is another driver that uses a patched kernel (for ATM support) and patched pppd (for the pppoa bit). They are not required for this solution they may even be incompatible with this driver. 1.4 What about the HDLC BUG? Well ok you may need a kernel patch for that, see HDLC_BUG for more details. (Addendum : the patch is included in vanilla kernels since 2.4.18-pre1) 1.5 I can see a lot of line like "usbdevfs: USBDEVFS_BULK failed dev 2 ep 0x81 len 16 ret -110", what's that? There are "normal" error messages output by your linux kernel. Don't worry too much about them. It may be fixed in a future release. 1.6 I can see a lot of line like: "usbdevfs: async_completed: status -2 errcount 0 actlen 0 pipe 0xc0008280" This is entirely normal message output by your kernel. If this is a worry for you (log file are too big), there is only one solution : - go to /usr/src/linux/drivers/usb/devio.c - change #if 1 to #if 0 in async_completed() function - compile/install your new usbcore.o module. 1.7 I'd like to start my connection when linux is started. How to do that? We provide a SysV init script suitable for debian/rh/mdk. The script is called speedtouch and is usualy copied into /etc/init.d by the install process. RPM installs also use this The configuration file for the script is kept in your system config directory (usually /etc/speedtouch.conf). It suppose the modem is the only usb device and that it can shut down usb without interfering with other usb devices. But the script is as flexible as we could code it. See howto use it : Then configure the speedtouch.conf in /etc : First set of variables : Those variables tell the script what module to load LOAD_USBCORE= (0 when usbcore is in kernel | 1 when it is a module) LOAD_USBINTERFACE= (0 when the usb interface is in kernel | 1 when it is a module) LOAD_NHDLC= (0 when compiled in kernel | 1 when compiled as a module) Then : This will give the script a fallback usb interface when it doesn't find your usb-interafce module in /etc/modules.conf (Debian users must set this value) DEFAULT_USBINTERFACE=("usb-uhci" | "usb-ohci") (do not use "uhci" which is buggy with some kernel versions) NB: Some distributions (e.g. Mandrake) already load the USB drivers on startup (look for /etc/init.d/usb) so the LOAD_USBCORE and LOAD_USBINTERFACE cariables can be set to 0. Then : Sets the modem_run verbosity VERBOSE=(0 | 1 | 2) Then : Defines the peer pppd shall try to "call" PEER="adsl" if you followed the HOWTO And finally : Defines the firmware location MICROCODE="the_right_path_to_find_the_firmware/(mgmt.o | alcaudsl.sys)" NB : No other variables should be changed Then it depends on your distro For RH/Mandrake distros : cd /etc/rc.d/init.d chkconfig speedtouch on For Debian distros (stable, testing, unstable) update-rc.d speedtouch start 90 2 3 4 5 . stop 10 0 1 6 . It should be activated during next reboot. ISP Settings ============ 2.1 What login I should use with my ISP? Logins vary with various ISP's and the wrong format can cause problems with things like authentication. ISP Format Club Internet login@clubadsl1 BT Openworld user.name@hg.btinternet.com 2.2 Which vpi.vci should I use? Here are some working values for some people, your configuration may differ Country/ISP VPI VCI Belgium, ? 8 35 Denmark, Orange 8 35 France, wanadoo 8 35 France, ? 8 67 Italy, ? 8 35 Netherlands, ? 8 48 UK, BTopenworld 0 38 US, BellSouth 8 35 Known Problems ============== 3.1. I have heard about upload problems. What is the current status? This problem is solved by using the HDLC line discipline. No upload or download limits are hardcoded in the driver. The upstream/downstream speed messages is purely informationnal and is not use in any part of this driver. 3.2 Downloads from some web-sites don't work! Several people have reported such problems. We are not sure of the exact reason but the consensus seems to be its a dodgy USB chipset problem. If can try on different USB hardware it may solve your problem. Some patches exist that increase the time-outs seem to of helped some people. See: http://www.mail-archive.com/speedtouch@ml.free.fr/msg02818.html http://www.mail-archive.com/speedtouch@ml.free.fr/msg02794.html If you've tested with different hardware and your still seeing problems and are willing to help in the diagnosis then contact the mailing list. Troubleshooting =============== 4.1 pppd says that there is no PPP support. => look at /dev/ppp. "ls -la" should give crw-rw---- 1 root root 108, 0 sep 27 2000 /dev/ppp If not, create /dev/ppp with the following commands: mknod /dev/ppp c 108 0 4.2 I get the message "ADSL line is blocked?" and modem_run just terminates - Why? Perhaps you have missed the -m flag off the modem_run command line? 4.3 I have seen messages like: "usbdevfs: process 833 (pppoa2) did not claim interface 1 before use". Does it mean that something is wrong? No. It is just a programmer error in the source code of the program. It has no consequence on the behaviour of the driver. Just signal them to the maintainer. 4.4 When I got disconnect by my Internet provider, pppd is unable to reconnect automatically, saying "Modem hangup". If I look at the pppoaX logging in syslog files, it shows the following messages "usbfs_claimintf: Device or resource busy". This is a known pb. See the file HDLC_BUG for instructions on how to patch your kernel sources. If the problem persist, get in touch. 4.5 pppoa3 is not closing when a ppp session fails? On some versions of pppd it fails to signal to its pty's to let them know to close down. I think this is a bug in the version of pppd, if anyone can work out who the maintainer is then let me know. This can cause a new instance of pppoa to start not get anywhere (and lock up your machine if pppd is setup for infinate retries). The workaround is to invoke pppoa with the -c option and it will clean up any rougue pppoa's before attemptiing to access the previously locked resources. 4.6 pppd can't load some modules! Example: > May 18 01:53:43 panoramix pppd[908]: pppd 2.4.0 started by Stephane, uid 0 > May 18 01:53:43 panoramix pppd[908]: ioctl(PPPIOCSDEBUG): Invalid argument > May 18 01:53:43 panoramix pppd[908]: ioctl(PPPIOCGFLAGS): Invalid argument > May 18 01:53:43 panoramix pppd[908]: Exit. > May 18 01:53:43 panoramix modprobe: modprobe: Can't locate module > tty-ldisc-13 Have you set your aliases up in modules.conf? 4.8 What interesting files I should look at in case of problems? /var/log/messages /var/log/syslog /var/log/daemong.log /var/log/pppoaX.log (for systems without syslog support only) If /var/log/daemon.log does not exist, you can create it by adding "daemon.* /var/log/daemon.log" at the end of "/etc/syslog.conf" Next, restart syslog with '/etc/rc.d/init.d/syslog restart' 4.9 My microcode upload has failed! We hear this from time to time and are not sure what causes this (except maybe some strangeness on the USB's part). If your reporting this problem to the mailing list please tell us what version and preferably what the md5sum of your microcode source is. We know of the following: 7d0e028a8e3901bc0b5b569c575203ef alcaudsl.sys windows version 1.3.1 (BTO CDROM?) 3423810ba8d43ec7cdd01dd83698762b alcaudsl.sys windows version 1.3.4 aae9dd2d6ad69878d7899b24fa40cb08 alcaudsl.sys windows version 1.3.4 b1bc2524451b8b238fca773d8642f60a alcaudsl.sys windows version 1.4.0 d77a03513c8abddc6f95395515f2973e alcaudsl.sys windows version 1.4.2-2e.sys aefca4891a64fd6f76d517406abd9407 alcaudsl.sys windows version 1.6-beta b35276ce6871cc2ba8c23e50a87043ab mgmt.o linux original version? 0ee210ea42613cf43c72310672aae6c6 mgmt.o linux version 1.3.3 ce3582cc9c3b967baa0e918f2708075d mgmt.o linux version 1.3.4 cb3ddd0a6100d405db7e84b6a12e08a5 macosx ? 4.10 I get lot of LCP-Config-Request Timeouts When trying to dial with pppd, I see this in my syslogd logs : >Apr 27 11:26:05 leloo pppd[262]: pppd 2.4.1 started by root, uid 0 >Apr 27 11:26:05 leloo pppd[262]: Using interface ppp0 >Apr 27 11:26:05 leloo pppd[262]: Connect: ppp0 <--> /dev/pts/0 >Apr 27 11:26:05 leloo pppd[262]: LCP: timeout sending Config-Requests >Apr 27 11:26:05 leloo pppd[262]: Connection terminated. and the last 3 lines repeating as many times as the maxfail value. There're 3 possible problems causing this : - Your ISP does not respond to your config requests. This cannot be solved by the driver :-) - You may have done a mistake in user/password between the adsl peer file and the chap/pap-secrets file. - Sometimes pppoa3 fails to remove its pid/lock file in /var/run/ Then check your daemon.log, and if you see lines where pppoa3 is waiting like this : >Mar 24 13:56:12 leloo pppoa3[25981]: Sending the kill signal to 1381 and >waiting but this line is missing : >Mar 24 13:56:12 leloo pppoa3[25981]: Ok, the previous instance seems to >quit To solve the problem, remove the pppoa3 pid file in /var/run and try again 4.11 I get "USBDEVFS_BULK failed dev 2 ep 0x85 len 512 ret -110 " when running modem_run Alcatel has released two types of modems. For some of them, modem_run has to read from the modem before trying to send it the firmware. This type of modem is the less common. But to make sure all modems work with modem_run out of the box, we have been obliged to put a read instruction by default. You can disable this first read instruction with the -s option (man modem_run). Anyway, if you see this error, it doesn't hurt. That's just you don't have this rare type of modem. 4.12 Everything seems to work but ifconfig still shows no IP on ppp0 Chances are the ppp authentication is failing. You can up the debug information ppp gives you in the logs by adding debug and kdebug to your peers file (man pppd for details). You probably should check the login's in your ppp peers file and chap/pap-secrets is in the correct format. 4.13 I can a see a couple of IPs in my logs but I can't browse the web ! Well, you're probably connected but you forgot to configure your DNS entries or pppd doesn't create them as it should do if you specified the usepeerdns option in the peer file. To see if you're connected try to ping a know IP, the best one is the peer ip in the ppp interface output generated by ifconfig. If you can't ping your peer then you're even connected, try checking your configuration again. If you can ping your peer, you're connected so you can solve this problem easily: - making a symlink between /etc/resolv.conf and /etc/ppp/resolv.conf # ln -sf /etc/ppp/resolv.conf /etc/resolv.conf - copying this file # cp /etc/ppp/resolv.conf - writing down manually the DNS IPs in this file 4.14 I've tried everything you said and it still does not work. First you can try the speedtouch doctor in doc-linux/doctor. To build the doctor, just type : # make and then run the speedtouch-doctor.sh script. It will output usefull hints to you. If the hints it gave you were not so usefull, then read the next advise. You may get some help from the mailing list speedtouch@ml.free.fr and should read the mail list archive, perhaps your problem has been solved in a previous thread. The mailing list archive is at : http://www.mail-archive.com/speedtouch@ml.free.fr/ However, you must give as many details about your configuration as possible. - your USB controller : cat /proc/pci - your kernel version : uname -a - your pppd version : pppd -V - your driver version : modem_run --help - your vpi/vci - your ADSL provider & ISP name - relevant section of your system logs (See 4.8), you can modify your ppp option file to run the pppoaX program with option -v 2. This will result in a more detailed log. - your problem description : crash, can't connect, poor performance - anything you think it might be usefull You are of course encouraged to modify the source code yourself & post your working modification to the list.