hi all,

i am a novice to the wdm driver development.
i have a pci card with a serial port on it. Could some one tell me how to
develop the drivers for this card.
I am of the idea i have to fisrt write a pci function driver and stack a
fiter driver on top of this. The problem is that i have no idea how to create
the required filter driver for this device. Could someone point out the
required references for the above.

Thanks for help in advance.

The more simple solution is to have the driver work as serial driver. that
is to say, the UPPER edge of the driver meets serial interface, handles
these IOCTL_SERIAL_GET_BAUD_RATE
IOCTL_SERIAL_xxx
....
the LOWER edge is to driver your pci card, such as to set/get registers, to
read/write I/O, to start DMA and so on.
So, there is no need to write function driver + fileter driver.

"mash" <mash@discussions.microsoft.com> wrote in message
newsD231441-FF43-43D0-AB19-594CE05A80AF@microsoft.com...

even simpler, if the PCI card's resources are a std uart interface, 8 ports
+ an interrupt, you can just install serial.sys on it and forgo writing a
driver.

d

--
Please do not send e-mail directly to this alias. this alias is for
newsgroup purposes only.
This posting is provided "AS IS" with no warranties, and confers no rights.


"Zhou" <changzhi_zhou@163.com> wrote in message
news:uMgtupGyEHA.1192@tk2msftngp13.phx.gbl...

http://leo.yuriev.ru/translate.php?d....ru%2FSerialXp

--
Remove spam4 from the spam4leo@yuriev.ru to reply.
But raider@leo.yuriev.ru is for spam only :-)