From 5806b25fd158188403fddf796be17c487faa59aa Mon Sep 17 00:00:00 2001
From: Szczepan Zalega <szczepan@nitrokey.com>
Date: Wed, 9 Jan 2019 11:28:57 +0100
Subject: [PATCH] Prevent Solo's debug serial port use by ModemManager

This Udev rule marks the device to be ignored by the MM.
Otherwise using the CDC ACM serial port interface will not be
possible, while its service is running.

Tested on Fedora 29, with ModemManager enabled, using:
$ solotool.py monitor /dev/solokey-serial
Fixes https://github.com/solokeys/solo/issues/62

As provided by @yparitcher in:
https://github.com/solokeys/solo/pull/60#issuecomment-452428432

Signed-off-by: Szczepan Zalega <szczepan@nitrokey.com>
---
 99-solo.rules | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/99-solo.rules b/99-solo.rules
index ce8cc8a..0c6450a 100644
--- a/99-solo.rules
+++ b/99-solo.rules
@@ -1,3 +1,12 @@
+# Notify ModemManager this device should be ignored
+ACTION!="add|change|move", GOTO="mm_usb_device_blacklist_end"
+SUBSYSTEM!="usb", GOTO="mm_usb_device_blacklist_end"
+ENV{DEVTYPE}!="usb_device",  GOTO="mm_usb_device_blacklist_end"
+
+ATTRS{idVendor}=="0483", ATTRS{idProduct}=="a2ca", ENV{ID_MM_DEVICE_IGNORE}="1"
+
+LABEL="mm_usb_device_blacklist_end"
+
 # Solo
 ATTRS{idVendor}=="0483", ATTRS{idProduct}=="a2ca", ATTRS{product}=="Solo",                   TAG+="uaccess", GROUP="plugdev", SYMLINK+="solokey"
 ATTRS{idVendor}=="0483", ATTRS{idProduct}=="a2ca", ATTRS{product}=="Solo HACKER (Unlocked)", TAG+="uaccess", GROUP="plugdev", SYMLINK+="solohacker"