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Re: IOServiceOpen fails

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Re: IOServiceOpen fails

Subject: Re: IOServiceOpen fails
From: plumber Idraulico <email@hidden>
Date: Mon, 16 Oct 2006 10:18:51 +0200

one way is
a Notification system

cf : documentation

-plum

Hi,

I have written a kernel driver.Now want to talk to it
through a userclient.My user space application is a
cocoa application  which calls IOServiceOpen() to
establish a connection with the userclient.The call
too IOServiceOpen fails and returning a value of  hex
value of 0xe00002c7 (-536870201  in decimal).But the
API's IOMasterPort(),IOServiceMatching() &
IOServiceGetMatchingServices() are returning
success.Can anybody help me out in this matter.


The info.plist file was corrupted. I created a new one
with  "IOUserClientClass" and its name as key-value
pair. Now it works.I am able to send data to the
driver from my userspace program :-) .I need to send
data back to my user space cocoa app from my
driver.How  can this be done?

Regards,
Sanjay


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References:  
  >Re:IOServiceOpen fails (From: sanjay yaragatti <email@hidden>)




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