ppp belkin usb-serial adapter

Hello,

1. Resumed definition of my problem
-With Mandrake 9.0 and 9.1 i have no problem to connect to internet via the
Belkin usb-serial adapter F5U103F and my serial db9 modem.
-With Mandrake 9.2(kernel 2.4.22.10 or 2.4.22.26) i cannot connect to
internet.

Mandrake team said :
- the device classes changed
- the driver must be rewrite
- we have no solution just to wait for the community to give another driver.

2. I have some doubt. If anyone has an idea i would appreciate.
3. The complete definition of my problem
3.1. My config
- a OLITEC Speedcom V92 Ready (serial) modem
- a BELKIN adapter serial-usb F5U103F
- my modem is connected to the PC via the adapter
- the link /dev/ttyUSB0(generated by the OS) is used by kppp
- All parameters have default value
- all necessary modules are installed usbcore,usbserial,belkin_sa etc.

3.2. Problem
- under windows 98 SE no problem
- Under Mandrake 9.0 and 9.1 Kppp works fine
- Under Mandrake 9.2 Kppp does not work (alsoWvdial)
- The modem behind adapter has never beeen detected but before (9.0,9.1)
that was working fine.

- dialing works
- modem negociation works(V90,V44,LAPM,49333)
- then there is no more exchange and there is no login dialog.
- finally i have a ppd error "...signal 15"

3.3. Here is PPP-logfile :

++++++++++++++++++++++++++++++++++++++++++++++++++ ++
Nov 4 13:36:49 localhost pppd[2145]: pppd 2.4.1 started by root, uid 0
Nov 4 13:37:18 localhost pppd[2145]: Terminating on signal 15.
Nov 4 13:37:18 localhost pppd[2145]: Couldn't set tty to PPP discipline:
Interrupted system call
Nov 4 13:37:18 localhost pppd[2145]: tcsetattr: No such device
Nov 4 13:37:18 localhost pppd[2145]: Exit.
++++++++++++++++++++++++++++++++++++++++++++++++++ ++

4. I joined different diagnostic reports
4.1. Console file
the messages sent to the console during the connexion

++++++++++++++++++++++++++++++++++++++++++++++++++ ++
[root@localhost root]# kppp
Loading required GL library /usr/X11R6/lib/libGL.so.1.2
Opener: received SetSecret
Opener: received SetSecret
Opener: received OpenLock

Opener: received OpenDevice
Opener: received ExecPPPDaemon
In parent: pppd pid 2237
Couldn't find interface ppp0: No such device
Kernel supports ppp alright.
Couldn't find interface ppp0: No such device
Couldn't find interface ppp0: No such device
Couldn't find interface ppp0: No such device
--------------------cut by me (it is very long)
Couldn't find interface ppp0: No such device
Couldn't find interface ppp0: No such device
Couldn't find interface ppp0: No such device
Couldn't find interface ppp0: No such device
Couldn't find interface ppp0: No such device
Opener: received KillPPPDaemon
In killpppd(): Sending SIGTERM to 2237
It was pppd that died
pppd exited with return value 1
Sending 2193 a SIGUSR1
Opener: received RemoveSecret
Opener: received RemoveSecret
Opener: received OpenResolv
Opener: received OpenResolv
Opener: received RemoveLock
Opener: received OpenSysLog
Jan 19 18:06:54 localhost kernel: CSLIP: code copyright 1989 Regents of the
University of California
Jan 19 18:06:54 localhost insmod: insmod: a module named slhc already exists
Jan 19 18:06:54 localhost modprobe: modprobe: insmod ppp0 failed
Jan 19 18:06:54 localhost kernel: PPP generic driver version 2.4.2
Jan 19 18:06:54 localhost pppd[2237]: pppd 2.4.1 started by root, uid 0
Jan 19 18:07:24 localhost pppd[2237]: Terminating on signal 15.
Jan 19 18:07:24 localhost pppd[2237]: Couldn't set tty to PPP discipline:
Interrupted system call
Jan 19 18:07:24 localhost pppd[2237]: tcsetattr: No such device
Jan 19 18:07:24 localhost pppd[2237]: Exit.
++++++++++++++++++++++++++++++++++++++++++++++++++ ++

4.2 Syslog file
the messages sent to the syslog during the connexion

++++++++++++++++++++++++++++++++++++++++++++++++++ ++
Jan 19 18:06:54 localhost kernel: CSLIP: code copyright 1989 Regents of the
University of California
Jan 19 18:06:54 localhost insmod: insmod: a module named slhc already exists
Jan 19 18:06:54 localhost modprobe: modprobe: insmod ppp0 failed
Jan 19 18:06:54 localhost kernel: PPP generic driver version 2.4.2
Jan 19 18:06:54 localhost pppd[2237]: pppd 2.4.1 started by root, uid 0
Jan 19 18:07:24 localhost pppd[2237]: Terminating on signal 15.
Jan 19 18:07:24 localhost pppd[2237]: Couldn't set tty to PPP discipline:
Interrupted system call
Jan 19 18:07:24 localhost pppd[2237]: tcsetattr: No such device
Jan 19 18:07:24 localhost pppd[2237]: Exit.
++++++++++++++++++++++++++++++++++++++++++++++++++ ++

regards

Philippe