Re: PWM Driver

From: Rui Tang (tangrui76_nospam_at_hotmail.com)
Date: 03/30/04 

Date: Tue, 30 Mar 2004 13:23:06 -0800

  Read the PB online help on "Stream Interface Drvers". 

-- 
Rui Tang
Centrality Communications Inc
"David V" <davev@> wrote in message
news:%23GyDRTpFEHA.3540@TK2MSFTNGP09.phx.gbl...
> I am trying to write a dll for a PWM driver. I am using Platform Builder
4.2
> for the x-scale.
>
> When i try to register the dll I use the code below and get error type 1.
>  dll = RegisterDevice(L"PWM", 1, L"pwm.dll", 0);
>
>
> In my dll project I have a init function, PWM_INIT.
>
>
> What should the signature be for this function? I have seen 3 different
> signatures. One with 2 input parameters, One that returns a BOOL. One that
> returns a DWORD handle.
>
> What should the handle be if all i want to do I use PWM_IOControl?
>
> There don't seem to be an good examples on how to write a driver. All the
> examples are poorly commented and extremely confusing.
>
>
> Dave V.
>
>

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