dev-embedded/pico-sdk: new package, add 2.1.1

Signed-off-by: Manuel <ljn0099@hotmail.com>

dev-embedded/pico-sdk/metadata.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>ljn0099@hotmail.com</email>
+		<name>Manuel</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">raspberrypi/pico-sdk</remote-id>
+	</upstream>
+</pkgmetadata>

dev-embedded/pico-sdk/pico-sdk-2.1.1.ebuild

@@ -0,0 +1,30 @@
+# Copyright 2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit git-r3
+
+DESCRIPTION="Libraries and tools for C/C++ development on RP2040 and RP2350 microcontrollers."
+HOMEPAGE="https://github.com/raspberrypi/pico-sdk"
+
+EGIT_REPO_URI="https://github.com/raspberrypi/pico-sdk.git"
+EGIT_BRANCH="master"
+EGIT_COMMIT="${PV}"
+
+LICENSE="BSD"
+SLOT="0"
+
+src_install() {
+	dodir /opt/pico-sdk
+	cp -r "${S}/." "${D}/opt/pico-sdk/"
+	find "${D}/opt/pico-sdk" -type d -name ".git" -exec rm -rf '{}' +
+
+	echo "PICO_SDK_PATH=/opt/pico-sdk" > "${T}/99pico-sdk" || die
+	doenvd "${T}/99pico-sdk"
+}
+
+pkg_postinst() {
+	elog "If you want to use the Pico SDK now, run:"
+	elog "    source /etc/profile"
+}