Re: Cann't make connection to a graphics IOService "IOFramebuffer"
Re: Cann't make connection to a graphics IOService "IOFramebuffer"
- Subject: Re: Cann't make connection to a graphics IOService "IOFramebuffer"
- From: Jason Seng <email@hidden>
- Date: Mon, 18 Apr 2005 09:16:08 -0800
Hi Amit,
At 17:14 +0530 15/4/05, Amit Gupta wrote:
I am trying to execute the code written below.
Here IOServiceOpen is giving error -536870203
Can any one tell the reason for this error.
There's documentation that describes how to interpret I/O Kit error codes.
<http://developer.apple.com/documentation/DeviceDrivers/Conceptual/AccessingHardware/AH_Handling_Errors/chapter_6_section_2.html>
In this case, -536870203 is 0xe00002c5, which indicates a system of
I/O Kit (0x38) and, within that, the common subsystem (0). The error
value is that in <IOKit/IOReturn.h>, namely:
#define kIOReturnExclusiveAccess iokit_common_err(0x2c5)// exclusive
access and
// device
already open
There's documentation about this error code as well.
<http://developer.apple.com/documentation/DeviceDrivers/Conceptual/AccessingHardware/AH_Handling_Errors/chapter_6_section_3.html>
The Window Server has the IOFramebufferUserClient open exclusively,
thus the reason for the error you are seeing.
What is it you are trying to do?
Cheers,
--
J-Sun Seng
Networking & Communications / Hardware
Developer Technical Support
Apple Computer, Inc.
#1 Infinite Loop
M/S: 303-2T
Cupertino, CA 95014
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