Hello!
I have written a WDM serial driver for XP & created a
symbolic link as COM5. In this driver i have just
rerouted all the ioctl
& read write calls to com1(serial0).
I have also added the string in
HKLM\Hardware\devicemap\serialcomm as \Device\Mydevice
COM5
I want to connect to internet through modem connected
to this port.
I have installed a standard serial modem & attached it
to COM5.
My problem is Iam unable to connect to internet using
DialUpNetworking.
When i do connect from DUN, Iam getting “Error
692-There was a Hardware failure in the Modem”.
I have added DbgPrint to see the ioctl calls comming
to my driver.My driver succeeds in all requests
,except for one IOCTL code
“0x2b002c” for which i return INVALID_DEVICE_REQUEST.
This ioctl seems to be belonging to a MODEM CLASS
Driver.
Is this problem because of not completing the unknown
IOCTL request.?
When i tested this in 2k ,the modem connects to the
remote machine (all handshaking noice is heard) & then
the system crashes .
But using the SAME DRIVER Iam ABLE to connect to isp
through HyperTerminal. I receive PPP packets after
username,pwd validation.
Please suggest me a solution to this problem?
Thanks in advance.
vdharan
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