9 files changed, 9 insertions, 0 deletions
diff --git a/docs/library/machine.ADC.rst b/docs/library/machine.ADC.rst
index 2752878ff3..4c7a04d74f 100644
--- a/docs/library/machine.ADC.rst
+++ b/docs/library/machine.ADC.rst
@@ -1,4 +1,5 @@
 .. currentmodule:: machine
+.. _machine.ADC:
 
 class ADC -- analog to digital conversion
 =========================================
diff --git a/docs/library/machine.I2C.rst b/docs/library/machine.I2C.rst
index e62d465e00..e2eb62ca37 100644
--- a/docs/library/machine.I2C.rst
+++ b/docs/library/machine.I2C.rst
@@ -1,4 +1,5 @@
 .. currentmodule:: machine
+.. _machine.I2C:
 
 class I2C -- a two-wire serial protocol
 =======================================
diff --git a/docs/library/machine.Pin.rst b/docs/library/machine.Pin.rst
index 216ebcb2a8..369c08f443 100644
--- a/docs/library/machine.Pin.rst
+++ b/docs/library/machine.Pin.rst
@@ -1,4 +1,5 @@
 .. currentmodule:: machine
+.. _machine.Pin:
 
 class Pin -- control I/O pins
 =============================
diff --git a/docs/library/machine.RTC.rst b/docs/library/machine.RTC.rst
index 6dc8b3e9ab..2a53b91469 100644
--- a/docs/library/machine.RTC.rst
+++ b/docs/library/machine.RTC.rst
@@ -1,4 +1,5 @@
 .. currentmodule:: machine
+.. _machine.RTC:
 
 class RTC -- real time clock
 ============================
diff --git a/docs/library/machine.SD.rst b/docs/library/machine.SD.rst
index 21c28aa200..0eb024602f 100644
--- a/docs/library/machine.SD.rst
+++ b/docs/library/machine.SD.rst
@@ -1,4 +1,5 @@
 .. currentmodule:: machine
+.. _machine.SD:
 
 class SD -- secure digital memory card
 ======================================
diff --git a/docs/library/machine.SPI.rst b/docs/library/machine.SPI.rst
index 82858629f3..fbb44d0380 100644
--- a/docs/library/machine.SPI.rst
+++ b/docs/library/machine.SPI.rst
@@ -1,4 +1,5 @@
 .. currentmodule:: machine
+.. _machine.SPI:
 
 class SPI -- a Serial Peripheral Interface bus protocol (master side)
 =====================================================================
diff --git a/docs/library/machine.Timer.rst b/docs/library/machine.Timer.rst
index eddb2ce780..ef46f9dd7c 100644
--- a/docs/library/machine.Timer.rst
+++ b/docs/library/machine.Timer.rst
@@ -1,4 +1,5 @@
 .. currentmodule:: machine
+.. _machine.Timer:
 
 class Timer -- control hardware timers
 ======================================
diff --git a/docs/library/machine.UART.rst b/docs/library/machine.UART.rst
index c29d079b75..0b2ebbd0b5 100644
--- a/docs/library/machine.UART.rst
+++ b/docs/library/machine.UART.rst
@@ -1,4 +1,5 @@
 .. currentmodule:: machine
+.. _machine.UART:
 
 class UART -- duplex serial communication bus
 =============================================
diff --git a/docs/library/machine.WDT.rst b/docs/library/machine.WDT.rst
index 1d79b4c4ed..5ca6dce45d 100644
--- a/docs/library/machine.WDT.rst
+++ b/docs/library/machine.WDT.rst
@@ -1,4 +1,5 @@
 .. currentmodule:: machine
+.. _machine.WDT:
 
 class WDT -- watchdog timer
 ===========================