From owner-freebsd-arm@freebsd.org Wed Jan 18 14:53:01 2017 Return-Path: Delivered-To: freebsd-arm@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id CCF66CB61AA for ; Wed, 18 Jan 2017 14:53:01 +0000 (UTC) (envelope-from george+freebsd@m5p.com) Received: from mailhost.m5p.com (mailhost.m5p.com [IPv6:2001:418:3fd::f7]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "m5p.com", Issuer "Let's Encrypt Authority X3" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 69A4D14C4 for ; Wed, 18 Jan 2017 14:53:01 +0000 (UTC) (envelope-from george+freebsd@m5p.com) Received: from [IPv6:2001:418:3fd::1f] (haymarket.m5p.com [IPv6:2001:418:3fd::1f]) by mailhost.m5p.com (8.15.2/8.15.2) with ESMTP id v0IEqroV011837 for ; Wed, 18 Jan 2017 09:52:59 -0500 (EST) (envelope-from george+freebsd@m5p.com) Subject: Re: Serial Peripheral Interface? To: freebsd-arm@freebsd.org References: From: George Mitchell Message-ID: <837cc758-64f1-12fc-90df-f291bfbe66cd@m5p.com> Date: Wed, 18 Jan 2017 09:52:46 -0500 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101 Thunderbird/45.6.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="mAm0Q2rJ8r1nAidKea2lM8jhONndk0teG" X-Spam-Status: No, score=-4.2 required=10.0 tests=ALL_TRUSTED, RP_MATCHES_RCVD autolearn=unavailable autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mattapan.m5p.com X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.1 (mailhost.m5p.com [IPv6:2001:418:3fd::f7]); Wed, 18 Jan 2017 09:52:59 -0500 (EST) X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Jan 2017 14:53:01 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --mAm0Q2rJ8r1nAidKea2lM8jhONndk0teG Content-Type: multipart/mixed; boundary="BqlPqOnb9pesuNgCeM5PUowtHeTtGfIiA"; protected-headers="v1" From: George Mitchell To: freebsd-arm@freebsd.org Message-ID: <837cc758-64f1-12fc-90df-f291bfbe66cd@m5p.com> Subject: Re: Serial Peripheral Interface? References: In-Reply-To: --BqlPqOnb9pesuNgCeM5PUowtHeTtGfIiA Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 01/17/17 19:56, George Mitchell wrote: > [...] Is it possible to use the SPI interfaces somehow from > userland? -- George By simulating SPI with bit-banging software through /dev/gpioc0, apparently ... -- George --BqlPqOnb9pesuNgCeM5PUowtHeTtGfIiA-- --mAm0Q2rJ8r1nAidKea2lM8jhONndk0teG Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEENdM4ZHktsJW5kKZXwRES3m+p4fkFAlh/gUUACgkQwRES3m+p 4fmzjw/6AgyANol7sx6VZpi/FQgLxHzyJwmBWjrcA7kfWCXn2h1Xr4KLzL51E040 mPHr9XloJQYUaMIhd9yCP+qprgyLdDVkFqeEcpmnLQn0zU4YB1KtfPU8utIk2jf+ gUXQlBkCPMUByOuyiwiPVInSy6oH6+WcAZ7YMHjz6dLS1A+jhQ51mNj76xFdOj1V ICmHHh2R9wPV5iD8Wc43P0kTrTI+5M3bBL7n1xlq6ERkVT3RT323eoAge6jNHFSC wwYiW/oe0mvZz4IRTcTLeOS7RPHHAKZRoV5XvjWLdWZaNzyLxO21ZkxQymMuFvZY 76yxQ3e+eS16X30BHci9fCc/AxLFgvOSAC+6LjIirl+T6jdvJWpxuRWrwR7Mk116 SXYIiwEPCUYvcgWQ9+ORM3lAGiTm9X6a4bW1xtYYZvge4YkuhwXnSG79aVLKvxM9 GOrjgVc/7wsg/g0A2Rv7+lvlm0pESTPvKn3sSRRipCnv4JY8GtIjvxyBAk7jhLcV abi6kQ3SNSQtZhIjDF/AFXTf2aGlHLZJfU5dE3CF5ezmYU0lExkXbZAym7c/i3XP 7Hwru31VvpQRktm1m5kLPisvvYdrzdG/eUZntZOszxXkTiYlmZBi7ckcKHyLm676 LAn01GICZ6FX4B+irQm9AI9rKl+J4eGkp3MUFQSY0mtXaHAjmb0= =JGZq -----END PGP SIGNATURE----- --mAm0Q2rJ8r1nAidKea2lM8jhONndk0teG--