Re: How can RS-232 communication in WDM?

these require a handle and can only be called from passive level. the mouser example does not create a handle nor does it call these apis, it creates the read/write irp on its own. both patterns have their place, certain the handle + Zw calls is easier to manage but it does have some restrictions

d

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<chris.aseltine@xxxxxxxxx> wrote in message news:10de25b1-59b7-4d78-86bc-b60f55ec14f4@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Mar 6, 6:56 pm, Zec <Z...@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

I cann't understand about your reply.

ReadFile and WriteFile is WinAPI function?

How can using WinAPI in WDM?

I would guess either Gary misunderstood your question, or he meant
ZwReadFile / ZwWriteFile.

.

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