diff --git a/Mac-OS-X-driver.md b/Mac-OS-X-driver.md
index 1826903..7594c9a 100644
--- a/Mac-OS-X-driver.md
+++ b/Mac-OS-X-driver.md
@@ -14,4 +14,7 @@ Looking at the strings in the kext bundle, there are references to DDR memory, l
 * [Kernel Extensions Programming Topics](https://developer.apple.com/library/mac/documentation/Darwin/Conceptual/KEXTConcept/) (Apple)
 * [Resolving kernel symbols](http://ho.ax/posts/2012/02/resolving-kernel-symbols/)
 * [A Kernel Extension ... by hand](http://unixjunkie.blogspot.nl/2006/12/kernel-extension-by-hand.html)
-* [KEXT Debugging on Mac](http://praveenmatanam.wordpress.com/2008/05/22/kext-debugging-on-mac/)
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+* [KEXT Debugging on Mac](http://praveenmatanam.wordpress.com/2008/05/22/kext-debugging-on-mac/)
+
+## Enabling debug output on the AppleCamera driver
+nvram boot-args="camLogging=0xffffffff"
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