From owner-freebsd-drivers@freebsd.org Wed Oct 7 18:15:14 2015 Return-Path: Delivered-To: freebsd-drivers@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 DC3859D07B3 for ; Wed, 7 Oct 2015 18:15:14 +0000 (UTC) (envelope-from leonardofogel@yahoo.com.br) Received: from nm8-vm0.bullet.mail.ne1.yahoo.com (nm8-vm0.bullet.mail.ne1.yahoo.com [98.138.91.23]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 9B2326CB for ; Wed, 7 Oct 2015 18:15:13 +0000 (UTC) (envelope-from leonardofogel@yahoo.com.br) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com.br; s=s2048; t=1444241537; bh=udbbcbIFbktHCfk7iuINGnL8PW/v80nV26uVzVZ2d1E=; h=Date:From:Subject:To:From:Subject; b=c+dyaFHgOh48wKpzFb+sma1kJx+AcJvzO9uWYeD/iFdT7KP4QDKI5CaXYU+XDmhJWSxH+iE8u4Kn8xm/X49D5xOBOcJOs1QirkrX9vGDhpmBH5OTzxAGp2qVCIvBwIzMPNT6Y4jrve39sYVUpf4Q5bm5RaOPsiI3qa8mg4JcpErLFuJdYNeQ8g5boT6hLgwoH7T+hBH6BdRt/uXD589484ZTOm2KYmq7PAiFmh5UBsd++WcdTeMLcWk3s7Yw3+1t4ffnHbz1QujFq+1RQnAlnVlMux3EuO9B6/MAF6Y69BTpW6z++RpvrH8r2a8xr/142X1bD4TpOBBCUoC4CNZ94w== Received: from [98.138.100.103] by nm8.bullet.mail.ne1.yahoo.com with NNFMP; 07 Oct 2015 18:12:17 -0000 Received: from [98.138.226.169] by tm102.bullet.mail.ne1.yahoo.com with NNFMP; 07 Oct 2015 18:12:17 -0000 Received: from [127.0.0.1] by omp1070.mail.ne1.yahoo.com with NNFMP; 07 Oct 2015 18:12:17 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 322875.2051.bm@omp1070.mail.ne1.yahoo.com Received: (qmail 27666 invoked by uid 60001); 7 Oct 2015 18:12:17 -0000 X-YMail-OSG: pvVED7YVM1m0yhWXoiKmKAJCKUgN1vznqv7hyD1THpoHreS LhzINAYCrhd9A4Xj6_c5kC3WoDCaocQMkUlO8MZ4Jw7_qHOAzfkmT3Zh81U6 6lvIvHolhMrAbP.UQPnlavAlIj6EAwOqEP63d5h.3Ej7aykw4OXy37CwgNpz e66QkprtY0hDCBFQ7iAoX4wfIVJYeytF4CWLDkK4GtBueerW21IunjrDI_SW 338O2HOUlWCiEpVFblM3DuBGRh9qfaABqmHJkqvgUREAB4zVipKlPvqw79dR mvCWHaTreLtkJ7bY74XALLpQgtGsQKfZ7khnrqLdX8jOx3FZ1ez8JbLFk.og NLHYFJKhKjrzwPP2SGpL.0yfMjMcecFxDxH0EbXpHE9X4ZgE_IuQrAFIpBvJ 6cCvq2r.QMWdWqtVSXVR_Mudtf_U7Fsee7GGwDbWm9x_zwZSJmSM_yR_p.5w YCj.9JZ_.qiX8zw8gd4EbrHPKwO7ArQXk0n9KR06KGvO9iVwjT2GX4YMVRGU XmuJoJn.1aD1V3eFXcT199sIWnnK0GjlbyBrkoxn_C4ByFmEuFldzNa4l263 YTL198R4Hs1RGK9767g-- Received: from [186.228.53.250] by web120802.mail.ne1.yahoo.com via HTTP; Wed, 07 Oct 2015 11:12:17 PDT X-Rocket-MIMEInfo: 002.001, SGVsbG8uDQpQbGVhc2UsIGNvdWxkIHNvbWVvbmUga2luZGx5IHBvaW50IG1lIHRvIGRvY3VtZW50YXRpb24gb24gaG93IHRvIHdyaXRlIGEgdmlkZW8gZHJpdmVyIGFuZCBpbnRlZ3JhdGUgaXQgdG8gdnQoNCk_IEkndmUgd3JpdHRlbiBhIGRyaXZlciB0byBjaGFyIGRpc3BsYXlzIGJhc2VkIG9uIHRoZSBIRDQ0NzgwLCBidXQgdGhlIHVzZXIgaW5wdXQvaW50ZXJmYWNlIGlzIGEgY2hhciBkZXZpY2UgZmlsZSAoZS5nLiBlY2hvIEhlbGxvID4gL2Rldi9maWxlKS4gSSB3b3VsZCBsaWtlIHRvIGludGVncmF0ZSABMAEBAQE- X-Mailer: YahooMailBasic/764 YahooMailWebService/0.8.203.817 Message-ID: <1444241537.96292.YahooMailBasic@web120802.mail.ne1.yahoo.com> Date: Wed, 7 Oct 2015 11:12:17 -0700 From: Leonardo Fogel Subject: How to write video drivers? To: freebsd-drivers@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Oct 2015 18:15:15 -0000 Hello. Please, could someone kindly point me to documentation on how to write a vi= deo driver and integrate it to vt(4)? I've written a driver to char display= s based on the HD44780, but the user input/interface is a char device file = (e.g. echo Hello > /dev/file). I would like to integrate it to vt(4). Thank you for your attention. Leonardo