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| #!/bin/sh | |
| # | |
| # Class 03h - HID | |
| # Subclass 00h - None, 01h - Boot Interface | |
| # Protocol 00h - None, 01h - Keyboard, 02h - Mouse | |
| HID11='3/1/1' | |
| HID00='3/0/0' | |
| /usr/bin/echo "removal $1 $2" >> /tmp/device-remove.env | |
| /usr/bin/echo "$INTERFACE" >> /tmp/device-remove.env | |
| if [ $INTERFACE = $HID11 ] ; then | |
| /usr/bin/touch /tmp/keyboard-3.1.1-gone | |
| elif [ $INTERFACE = $HID00 ] ; then | |
| /usr/bin/touch /tmp/keyboard-3.0.0-gone | |
| fi |
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update I can use previously "incompatible" keyboards with current El Capitan 10.11.6 (15G1611) and High Sierra 10.13. I'm curios when Apple fixed this issue and let all keyboards work with Macs?
.
MacOS X compatible USB keyboard and the Eudyptula challenge
Some time ago I've got a need for Mac Mini and for a keyboard to manage it. My favorite keyboard at that moment (Mitsumi Classic KFK-EA4XY) could not pass "Keyboard Setup Assistant" (keyboard cannot be identified and will not be usable...) The cheapest so advertised "Mac-compatible" keyboard turned Microsoft Wired Keyboard 600 which was not a bad piece of Chinese plastic but with degraded F1-F12 keys, arbitrary extra keys and a tad pricey one. Anyway i was left puzzled by that Mac-compatibility magic.
Fast-forward a year or so -- i've decided to put that Mac Mini to work again and hooked a random keyboard (BTC 6411) to it. To my total surprise it worked Ok. But sheer luck i knew at that moment a small difference between those BTC and Mitsumi keyboards: Mitsumi has a phantom device (or maybe "endpoint") 3/0/0 (Class/Subclass/Protocol) besides a real device 3/1/1 (Class 3 - HID, Subclass 1 - Boot Interface, Protocol 1 - Keyboard). BTC 6411 has only real 3/1/1.
As part of Eudyptula challenge i've examined a number of USB keyboards and udev events generated at their insertion and removal. A udev rule
SUBSYSTEM=="usb", ACTION=="remove", RUN+="/usr/local/sbin/usbdevgone.sh $devpath $env{INTERFACE}"and a dump script above allow me see USB "remove" events.
With that udev helper I've found another keyboard models without useless 3/0/0 "endpoint":
Tested in Mac OS X 10.8.5 - 10.11.5
First published 2014-06-13 in zhmark.livejournal.com