Searched refs:setDDCClock (Results 1 - 2 of 2) sorted by relevance
| /macosx-10.10/IOGraphics-485/IOGraphicsFamily/IOKit/graphics/ |
| H A D | IOFramebuffer.h | 274 @discussion IOFramebuffer subclasses may optionally implement this method to perform I2C bus requests on one of the buses they support. Alternatively they may implement the setDDCClock(), setDDCData(), readDDCClock(), readDDCData() methods and respond from getAttributeForConnection() to the kConnectionSupportsLLDDCSense attribute with success, in which case IOFramebuffer::doI2CRequest() will carry out a software implementation of I2C using the low level routines and conforming to the timing constraints passed in the timing parameter. Subclasses may pass timing parameters tuned for the specific bus, otherwise VESA DDC defaults will apply.
648 kConnectionSupportsLLDDCSense If the framebuffer wishes to make use of IOFramebuffer::doI2CRequest software implementation of I2C it should implement the I2C methods setDDCClock(), setDDCData(), readDDCClock(), readDDCData(), and it should return success (and no value) for this attribute.<br>
730 /*! @function setDDCClock
737 virtual void setDDCClock( IOIndex bus, UInt32 value );
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| /macosx-10.10/IOGraphics-485/IOGraphicsFamily/ |
| H A D | IOFramebuffer.cpp | 9009 void IOFramebuffer::setDDCClock( IOIndex /* connectIndex */, UInt32 /* value */ ) function in class:IOFramebuffer
9181 setDDCClock(bus, kIODDCLow);
9337 setDDCClock(bus, kIODDCHigh);
9346 setDDCClock(bus, kIODDCLow);
9362 setDDCClock(bus, kIODDCLow);
9367 setDDCClock(bus, kIODDCHigh);
9377 setDDCClock(bus, kIODDCTristate);
9389 setDDCClock(bus, kIODDCLow);
9404 setDDCClock(bus, kIODDCHigh);
9406 setDDCClock(bu
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