From e889d685b4d8b94c2534f258a04b9725dc776695 Mon Sep 17 00:00:00 2001
From: Marcus Müller <marcus.mueller@ettus.com>
Date: Tue, 21 Jul 2015 20:06:43 +0200
Subject: docs: Added paragraph on GPIO maximum current, +3.3V supply

---
 host/docs/gpio_api.dox | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'host/docs/gpio_api.dox')

diff --git a/host/docs/gpio_api.dox b/host/docs/gpio_api.dox
index d3bb4f0a9..98515d07b 100644
--- a/host/docs/gpio_api.dox
+++ b/host/docs/gpio_api.dox
@@ -13,6 +13,10 @@ disabling a TX or RX mixer).
 
 \subsection xgpio_fpanel_gpio X3x0 Front Panel GPIO
 
+The GPIO port is not meant to drive big loads. You should not try to source more than 5mA per pin.
+
+The +3.3V is for ESD clamping purposes only and not designed to deliver high currents.
+
 \subsubsection xgpio_fpanel_conn Connector
 
 \image html x3x0_gpio_conn.png "X3x0 GPIO Connectors"
-- 
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