Add dev-embedded/teensy-loader-cli (PJRC's microcontroller programmer).

diff --git a/ChangeLog b/ChangeLog
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+++ b/ChangeLog
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+# ChangeLog for dev-embedded/teensy-loader-cli
+# Copyright 1999-2012 Gentoo Foundation; Distributed under the GPL v2
+# $Header: $
+
+*teensy-loader-cli-2.0 (23 Jul 2012)
+  23 Jul 2012; W. Trevor King <wking@drexel.edu> teensy-loader-cli-2.0.ebuild:
+  - Added initial ChangeLog which should be updated whenever the
+  package is updated in any way. This changelog is targetted to
+  users. This means that the comments should well explained and
+  written in clean English. The details about writing correct
+  changelogs are explained in the skel.ChangeLog file which you can
+  find in the root directory of the portage repository.

diff --git a/Manifest b/Manifest
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+++ b/Manifest
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+AUX 49-teensy.rules 351 RMD160 698918dc4fbc18576648c301315ca8359c61f300 SHA1 7fa52c47195a86c328e712b6bce28220cdfacfb9 SHA256 fdf8636c1749a6dc26e1d6f37bf1894d047512d07fcbae36fa51da6455cb1ce9
+DIST teensy_loader_cli.2.0.tar.gz 27044 RMD160 11851edd9a46fc4b929177b8fef54edd5a1aac54 SHA1 2b49231dadc7cae63745ab0e0b0756ef895ccb5c SHA256 0ffd4d4b65fe3c2bce7ef73cf599b0b5279b3101fb843054cd79b0df6e067a96
+EBUILD teensy-loader-cli-2.0.ebuild 1416 RMD160 b274db1962920a562ece7eaadabe3945eca4db26 SHA1 04683f79240acb02637efd5e2adf3a0532062390 SHA256 93667c72726132b870c815ada893f6c6cb7a02999bcf03b220c4b68a3a28840e
+MISC ChangeLog 626 RMD160 49e55e33ad18e22e7ba9899d210e95f449012fdb SHA1 613495d45b77448bc47554ecf7423b957d290c14 SHA256 46ee92e2364e65a163cb566acfdeff66228287b8b5035cbd7f4ae5ed8f665275
+MISC metadata.xml 247 RMD160 f6a3debfa8f70e039ec74fe92be0de687c8cec20 SHA1 30c46f34b3a777a6ff4f46dd4590b94677594948 SHA256 30b3270d8e655f6c190d3148f49b9364795beb41991502630e6631886ef107ea

diff --git a/files/49-teensy.rules b/files/49-teensy.rules
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+++ b/files/49-teensy.rules
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+# UDEV Rules for Teensy boards, http://www.pjrc.com/teensy/
+#
+# Based on the suggestions at:
+#   http://www.pjrc.com/teensy/49-teensy.rules
+
+SUBSYSTEMS=="usb", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04[789]?", GROUP:="teensy"
+KERNEL=="ttyACM*", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04[789]?", GROUP:="teensy", ENV{ID_MM_DEVICE_IGNORE}="1"

diff --git a/metadata.xml b/metadata.xml
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--- /dev/null
+++ b/metadata.xml
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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+       <herd></herd>
+       <maintainer>
+               <email>wking@tremily.us</email>
+               <name>W. Trevor King</name>
+       </maintainer>
+</pkgmetadata>

diff --git a/teensy-loader-cli-2.0.ebuild b/teensy-loader-cli-2.0.ebuild
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+++ b/teensy-loader-cli-2.0.ebuild
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+# Copyright 1999-2012 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: $
+
+EAPI="4"
+
+inherit eutils
+
+MY_PN="${PN//-/_}"
+DESCRIPTION="Command line programmer for Teensy microcontrollers"
+HOMEPAGE="http://pjrc.com/teensy/loader_cli.html"
+SRC_URI="http://pjrc.com/teensy/${MY_PN}.${PV}.tar.gz"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="-examples +udev"
+
+DEPEND="dev-libs/libusb"
+RDEPEND="$DEPEND"
+
+S="${WORKDIR}/${MY_PN}"
+
+pkg_setup() {
+       use udev && enewgroup teensy
+       #groupdel in pkg_postrm()?
+}
+
+src_unpack() {
+       unpack ${A}
+       cd "${S}"
+       # Don't strip the binary (remove -s flag)
+       sed -i 's/$(CFLAGS) -s /$(CFLAGS) /' Makefile
+}
+
+src_compile() {
+       emake OS=LINUX "CFLAGS=${CFLAGS}" "LDFLAGS=${LDFLAGS}"
+}
+
+src_install() {
+       dobin teensy_loader_cli
+       if use examples; then
+               dodoc *.hex
+       fi
+       if use udev; then
+               insinto /lib/udev/rules.d
+               doins "${FILESDIR}/49-teensy.rules"
+       fi
+}
+
+pkg_postinst() {
+       if use udev; then
+               elog "To be able to use Teensy devices, you need to be a"
+               elog "member of the group 'teensy' which has just been added"
+               elog "to your system. You can add your user to the group by"
+               elog "running the following command as root:"
+               elog
+               elog "  usermod -a -G teensy youruser"
+               elog
+               elog "Please be aware that you need to either re-login or run"
+               elog
+               elog "  newgrp - teensy"
+               elog
+               elog "for the group membership to take effect."
+       fi
+}