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Conflict with SD card in MacBook Air #23
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That is super super super weird. Note also that the touchpad is being reset too ('AppleUSBMultitouchDriver'). The only thing that HoRNDIS knows is that out of nowhere, the device that it thought it was talking to went away. Looks like the USB hub it's attached to internally just loses its mind sometimes? That's super freaky, but unfortunately I've got no idea why it happens :( Signs point to it being a bug somewhere else in the USB stack (it's probably not the phone's fault; the phone shouldn't be able to cause that), but I don't have enough experience with the way USB is set up on the Mac to be able to tell you what exactly is going on... |
Thank you for the quick reply! The touchpad reset also happens when tethering works fine (without the SD card):
I installed Apple IOUSBFamily Log now, which gives me very detailed logs. On the log level 1 (least detail) it looks like if the touchpad is not the only USB device being reset:
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That last log makes me inclined to believe that there's something weird hardware-related going on, but of course that is because I am wearing my software developer hat :-) I really do wonder what's going on. If you find out more going forward, please continue to keep me updated. |
The problem was caused by Google's "Android File Transfer" http://www.android.com/filetransfer/. I uninstalled this crap and everything works fine now. Thank you for this extremely helpful driver, Joshua! |
If I execute "setprop sys.config.usb rndis" on my Android phone while an SD card is in the card reader of my MacBook Air, OS X shows the message, that the SD card was not properly unmounted. Also the tethering connection does not work then. Sometimes it works first, but disconnects after a short time.
system.log on the Mac:
Without the SD card inserted tethering works fine most of the time. Inserting the SD card when the tethering connection was already established, makes no problems.
The MacBook Air is a 13" mid 2011 with OS X 10.9.2. The SD card is a PNY StorEDGE 128GB. The phone is a Fairphone with Android 4.2.2 (Fairphone OS 1.1 Caju).
Any idea what's going on there?
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