From 3898e282f6290b65320eeb1493cfa020dd44859f Mon Sep 17 00:00:00 2001
From: Nils Freydank <holgersson@posteo.de>
Date: Sat, 7 Apr 2018 22:30:20 +0200
Subject: [PATCH] dev-python/pifacecommon: Set the SPI clock speed to a fixed
 value.

Package-Manager: Portage-2.3.28, Repoman-2.3.9
Manifest-Sign-Key: 766B8122134269123401492A8B54D7A3FF3CDB17
---
 .../files/pifacecommon-4.2.1-fix_speed.patch  | 19 +++++++++++++
 .../pifacecommon/pifacecommon-4.2.1-r1.ebuild | 28 +++++++++++++++++++
 2 files changed, 47 insertions(+)
 create mode 100644 dev-python/pifacecommon/files/pifacecommon-4.2.1-fix_speed.patch
 create mode 100644 dev-python/pifacecommon/pifacecommon-4.2.1-r1.ebuild

diff --git a/dev-python/pifacecommon/files/pifacecommon-4.2.1-fix_speed.patch b/dev-python/pifacecommon/files/pifacecommon-4.2.1-fix_speed.patch
new file mode 100644
index 0000000..c3f1ddc
--- /dev/null
+++ b/dev-python/pifacecommon/files/pifacecommon-4.2.1-fix_speed.patch
@@ -0,0 +1,19 @@
+Author: Nils Freydank <holgersson@posteo.de>
+Date:   Sat Apr 07 22:00:01 2018 +0100
+
+Set speed_hz to a limited value as it might otherwise be default
+to a system clock depending value.
+
+--- a/pifacecommon/spi.py	2015-05-26 12:24:06.000000000 +0200
++++ b/pifacecommon/spi.py	2018-04-07 22:00:00.000000000 +0200
+@@ -65,7 +65,8 @@
+         transfer = spi_ioc_transfer(
+             tx_buf=ctypes.addressof(wbuffer),
+             rx_buf=ctypes.addressof(rbuffer),
+-            len=ctypes.sizeof(wbuffer)
++            len=ctypes.sizeof(wbuffer),
++            speed_hz=ctypes.c_uint32(15000)
+         )
+
+         if self.spi_callback is not None:
+
diff --git a/dev-python/pifacecommon/pifacecommon-4.2.1-r1.ebuild b/dev-python/pifacecommon/pifacecommon-4.2.1-r1.ebuild
new file mode 100644
index 0000000..64d06dc
--- /dev/null
+++ b/dev-python/pifacecommon/pifacecommon-4.2.1-r1.ebuild
@@ -0,0 +1,28 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+PYTHON_COMPAT=( python2_7 python3_5 )
+
+inherit distutils-r1
+
+DESCRIPTION="Common functions for interacting with PiFace products"
+HOMEPAGE="https://github.com/piface/pifacecommon"
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/piface/pifacecommon.git"
+else
+	SRC_URI="https://github.com/piface/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+	KEYWORDS="~arm"
+fi
+
+LICENSE="GPL-3"
+SLOT="0"
+IUSE=""
+
+PATCHES=( "${FILESDIR}"/${PN}-4.2.1-fix_speed.patch )
+
+DEPEND="dev-libs/libpifacedigital"
+RDEPEND="${DEPEND}"