• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
IOI2CSendRequest problem
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

IOI2CSendRequest problem


  • Subject: IOI2CSendRequest problem
  • From: Vitaly Bondar <email@hidden>
  • Date: Tue, 24 Jul 2012 09:12:33 +0300

Hello,

  I hope that here is correct place to ask about IOKit.

I have faced problem with IOI2CSendRequest function from "IOKit/i2c/IOI2CInterface.h"

Apple example for fetching EDID from display (using of oxA0 and oxA1 addresses) works fine. But when i'm trying to use 0x6e/0x6F addresses - can't receive response from display. If i send write command to display, like set brightness, i see that it is applied on display. But when i send command for fetching something - it is not works. The commands itself is correct because same things works in Windows realization.

Part of code and a little more info here:
http://stackoverflow.com/questions/11561623/i2c-communication-in-iokit-on-mac-os-x

Is there is any known issues in i2c communication with display?
Maybe request structure filled wrong?

Will be great to hear even guesses.

Thank you.

Best regards,
Vitaly Bondar



_______________________________________________
Do not post admin requests to the list. They will be ignored.
Darwin-dev mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

  • Prev by Date: Re: Writing to BSD layer from I/O kit layer
  • Next by Date: Perl version in 10.8, and 10.9?
  • Previous by thread: Re: Writing to BSD layer from I/O kit layer
  • Next by thread: Perl version in 10.8, and 10.9?
  • Index(es):
    • Date
    • Thread