From 83457661a3ebd00be5037e722068a889d8d49167 Mon Sep 17 00:00:00 2001
From: "Matthias@Dell" <matthiasqui@protonmail.com>
Date: Tue, 27 Jun 2023 15:23:48 +0200
Subject: [PATCH] added udev rule

---
 99-usbtmc.rules | 8 ++++++++
 readme.md       | 7 +++++++
 2 files changed, 15 insertions(+)
 create mode 100644 99-usbtmc.rules

diff --git a/99-usbtmc.rules b/99-usbtmc.rules
new file mode 100644
index 0000000..b3ba074
--- /dev/null
+++ b/99-usbtmc.rules
@@ -0,0 +1,8 @@
+# Rule for Keithley 2611B
+
+# take vendor and product id from lsusb
+SUBSYSTEMS=="usb", ACTION=="add", ATTRS{idVendor}=="05e6", ATTRS{idProduct}=="2614", GROUP="usbtmc", MODE="0660" RUN+="/bin/touch /tmp/05e6-2611-connected"
+
+# Devices
+KERNEL=="usbtmc/*",       MODE="0660", GROUP="usbtmc"
+KERNEL=="usbtmc[0-9]*",   MODE="0660", GROUP="usbtmc"
diff --git a/readme.md b/readme.md
index e5755ec..f917a4b 100644
--- a/readme.md
+++ b/readme.md
@@ -37,3 +37,10 @@ ipython -i k_teng_interactive.py -- -*X*
 Substitute *X* for `-k` for keithley backend, `-a` for arduino backend or `-t` for testing backend.
 
 In the shell, run `help()` to get a list of available commands
+
+
+## Installation
+### Keithley
+On linux:
+Install the udev rule in `/etc/udev/rules.d/` and run `sudo udevadm control --reload` to force the usbtmc driver to be used with the Keithley SMU.
+The `ATTRS{product_id} ` needs to match the id shown by `lsusb`.