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## os-x-enable-trim.md

      
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                clarencesong
                / os-x-enable-trim.md
            
            
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              September 28, 2023 17:03
            
              
                Enable TRIM in OS X 10.7.5 to 10.9.5
              
          
    Enable TRIM on non-Apple SSDs in OS X

NOTE: This is tested on the versions mentioned in the title, and NOT earlier or later versions. YMMV.
Run the following commands in Terminal…
Backup the original driver:
sudo cp /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage-backup


## lcdui.py
import smbus
import getopt
import sys
from time import *
from time import gmtime, strftime

# TODO: Factor out all device_write calls to some PCF8574 specific module ...
#       will be different with another io expander

# communication from expander to display: high nibble first, then low nibble
	import smbus
	import getopt
	import sys
	from time import *
	from time import gmtime, strftime

	# TODO: Factor out all device_write calls to some PCF8574 specific module ...
	# will be different with another io expander

	# communication from expander to display: high nibble first, then low nibble