From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B96BBC433E0 for ; Sun, 31 May 2020 13:32:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 934A320707 for ; Sun, 31 May 2020 13:32:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="OvQUeyLf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727971AbgEaNcD (ORCPT ); Sun, 31 May 2020 09:32:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54770 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726008AbgEaNcC (ORCPT ); Sun, 31 May 2020 09:32:02 -0400 Received: from mail-qk1-x742.google.com (mail-qk1-x742.google.com [IPv6:2607:f8b0:4864:20::742]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A9AC3C061A0E; Sun, 31 May 2020 06:32:02 -0700 (PDT) Received: by mail-qk1-x742.google.com with SMTP id w3so6658228qkb.6; Sun, 31 May 2020 06:32:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=7mjQPFZLDY3zOJxS6K+hwBYDZ7ogeoyTkdPn+NbadQA=; b=OvQUeyLfMwrvAin4ZW+rJVAV3Brt0cXRGFYFkbwhjGFNAlulLUWx2u+XlDicCYbIIv cngSvARYr/W1RWxz62Nu9/fYPz98+YYIE53Mv5wST7j3b2/BZ+Ck8mzn/gm3kX/kiIjA fAg42ScpwGAu2VBrl+wgSz0uMRL2n4sMzy7Peq2EXcpiI5HB2Cz5TRdsCHZmpxEQrbaM 2hffWRCVFTk9uMmbVPUtjrifiAiqSS0uiWVBuJWkpUpP2QcBBHBKVdp+9FZbIqMo9v8k i1wOJg8tK0Q6N7B/MBkUAO30R4AE8SPalg+BkZoLrEosrQxINBJg49zXwiwBVsqLoOiF QIaA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=7mjQPFZLDY3zOJxS6K+hwBYDZ7ogeoyTkdPn+NbadQA=; b=UHkDNI0fzpUUUeYWzjR6msjvFaMIt4duXX8dho2Nm+s57wPoIIgWdUK8EarGtXYjRn XfvrQxDlOlOC1WrlXBZR1Fuw0Pqc0q1Bvl6Pl05t4bo5Sqtdpna3oI2OXwPp6FdORyrv ZLHXJCVj4TJGlADRhDsfNHY4+AUIvaUtfso5SVtNTX7jIRpymFzWpk0hdQoaacdfqXw8 ttfPNfJZpkuK1EggB68bTz6O320guwmXFz1cc14iIddMyY0o4FnVU9QskX7rAxdyPMyR zUSg5LdpM2sl3iX+8eSnCJ5J3OKhx5qmIWdm/8AJzpP7f/YS7mxQvNxnkAqSOWCkAm9a Peaw== X-Gm-Message-State: AOAM5334ZwMFcbucFp/aMtnIXeBqIsiMoUsx9IcQygfkC8WJ4wb3vhrD cK4JHJw5yAoN0ikEJonrsVs= X-Google-Smtp-Source: ABdhPJyLqWvBTi+Blweff9xoUoSmEYagIdQTmznRqhCCEj/Zz7hVlATzQXnLTG1Q06c2kaU18tdn4w== X-Received: by 2002:a05:620a:1f6:: with SMTP id x22mr15510121qkn.199.1590931921668; Sun, 31 May 2020 06:32:01 -0700 (PDT) Received: from shinobu (072-189-064-225.res.spectrum.com. [72.189.64.225]) by smtp.gmail.com with ESMTPSA id q187sm11366164qka.34.2020.05.31.06.31.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 31 May 2020 06:32:00 -0700 (PDT) Date: Sun, 31 May 2020 09:31:47 -0400 From: William Breathitt Gray To: Pavel Machek Cc: jic23@kernel.org, kamel.bouhara@bootlin.com, gwendal@chromium.org, alexandre.belloni@bootlin.com, david@lechnology.com, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, syednwaris@gmail.com, patrick.havelange@essensium.com, fabrice.gasnier@st.com, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com Subject: Re: [PATCH v2 4/4] docs: counter: Document character device interface Message-ID: <20200531133131.GA6725@shinobu> References: <20200529132604.GB1339@bug> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="p4qYPpj5QlsIQJ0K" Content-Disposition: inline In-Reply-To: <20200529132604.GB1339@bug> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --p4qYPpj5QlsIQJ0K Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, May 29, 2020 at 03:26:04PM +0200, Pavel Machek wrote: > On Sat 2020-05-16 15:20:02, William Breathitt Gray wrote: > > This patch adds high-level documentation about the Counter subsystem > > character device interface. > >=20 > > Signed-off-by: William Breathitt Gray > > --- > > Documentation/driver-api/generic-counter.rst | 112 +++++++++++++------ > > 1 file changed, 76 insertions(+), 36 deletions(-) > >=20 > > diff --git a/Documentation/driver-api/generic-counter.rst b/Documentati= on/driver-api/generic-counter.rst > > index 8f85c30dea0b..58045b33b576 100644 > > --- a/Documentation/driver-api/generic-counter.rst > > +++ b/Documentation/driver-api/generic-counter.rst >=20 > > + > > +Counter chrdev > > +-------------- > > +Translates counter data to the standard Counter character device; data > > +is transferred via standard character device read/write calls. > > + > > +Sysfs Interface > > +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > + > > +Several sysfs attributes are generated by the Generic Counter interfac= e, > > +and reside under the `/sys/bus/counter/devices/counterX` directory, > > +where `X` is to the respective counter device id. Please see > > +Documentation/ABI/testing/sysfs-bus-counter for detailed information on > > +each Generic Counter interface sysfs attribute. > > + > > +Through these sysfs attributes, programs and scripts may interact with > > +the Generic Counter paradigm Counts, Signals, and Synapses of respecti= ve > > +counter devices. > > + > > +Counter Character Device > > +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D > > + > > +Counter character device nodes are created under the `/dev` directory = as > > +`counterX`, where `X` is the respective counter device id. Defines for > > +the standard Counter data types are exposed via the userspace > > +`include/uapi/linux/counter-types.h` file. > > + > > +The first 196095 bytes of the character device serve as a control > > +selection area where control exposure of desired Counter components and > > +extensions may be selected. Each byte serves as a boolean selection > > +indicator for a respective Counter component or extension. The format = of > > +this area is as follows: > > + > > +* For each device extension, a byte is required. > > +* For each Signal, a byte is reserved for the Signal component, and a > > + byte is reserved for each Signal extension. > > +* For each Count, a byte is reserved for the Count component, a byte is > > + reserved for the count function, a byte is reserved for each Synapse > > + action, and byte is reserved for each Count extension. > > + > > +The selected Counter components and extensions may then be interfaced > > +after the first 196095 bytes via standard character device read/write > > +operations. The number of bytes available for each component or > > +extension is dependent on their respective data type: u8 will have 1 > > +byte available, u64 will have 8 bytes available, strings will have 64 > > +bytes available, etc. >=20 > This looks like very, very strange interface, and not described in detail > required to understand it. >=20 > Could you take a look at input subsystem, /dev/input/event0? Perhaps it i= s=20 > directly usable, and if not something similar should probably be acceptab= le. >=20 > Best regards, > Pavel Yes, I don't think this is a good interface afterall. I'm implementing a different design for v3 that should be more intuitive. The input subsystem could be useful for streams of events such as timestamps, so I'll take a look at it as well in case something similar to it could be used. William Breathitt Gray --p4qYPpj5QlsIQJ0K Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEk5I4PDJ2w1cDf/bghvpINdm7VJIFAl7TscMACgkQhvpINdm7 VJLU9hAAjZE3eFls1/dM0bpj9fivaZE+WCka2FakUqh0/3e48BVKe4lgLXBKxvBV EYJrNH9fastmhGjWwI2JU9nVaTMUMeDZMtQFX6WccLR6wbZbncR6eDv/N2sn0VNB jqQ+QdidLI+0tHJIVhQCzgEE0G6J6OMlUI1XkolNQVFKc2AWyxVFOKYcXWVlOaJF 5RuNDd067JuwqUncPfnInAMsI/5310+8UTEDza3twfjg61EI5wzU/PB7CzeE5rpz uXex2BiRUcR/QQiNP1KjhrIyawQkBGhx4LKcqFGlx5QTwec/Jg7NmjyWEnSsboZg AnHu1w+b2UbsHhWWRSHDWB1m7qM+zKhDYTYVOr5d0u0qgvitqeOsOaux34/tNMTT cc4PTlf5zZFozDvTsilbLhNf5OhkIp5emAVCG5lXF4i0r7Q/jcRI0ScHZ3BSmL1p unxD66ZbwtxHej5HJWAdZ1VPGr0gjWL29q+cxK3B7RqOUgl5ZwYnKgUaqbJAOM6Q 2K8z+BqLVH975M33jnPm0PSRyCxLfYPN+vKcEgw/ly3Z/3b3LYePtsuxc7bo8kVA 7uNPKFaSp2VW1XCaAd0hqBx3/q/LZEQjaPGVFtWkrMpv/vnsJVWSPAoJO9+9T/zS HZ5TugHnAaPTVx7eo+0u7rzLOVv2wS5v0G0MU4KMwiN85Ws1Umo= =ca5o -----END PGP SIGNATURE----- --p4qYPpj5QlsIQJ0K-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.5 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 204F5C433E0 for ; Sun, 31 May 2020 13:32:14 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DAAD220707 for ; Sun, 31 May 2020 13:32:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="SiBt3gqT"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="OvQUeyLf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DAAD220707 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type:Cc: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=14V1g2Een/+tog4Mm1CijdD0VeZhvFJ790l/gJBuAsE=; b=SiBt3gqTEGX2n8oqiTde8Pz1u 1SkA6c0GR2AuCqlVKjUZTb+euHgAivOWR30lrA6tpr4dosDSvKvV5dGoxc1PRiE+K2H1k4ihmZYUO qsNVPKnwE3UwRffTDjW03QyND++ZedwxRner5ybMcPS7b+Le0irxSjsxAPmWQYYuy+MNyPJAuB5FJ xhKyKc7yCI4LbtAvKHr4xqUB6jFnJNqU4/kVCO39SR24PlOnAOtr1yf3y4a91qUFvmQNp3Sb9+7M2 NPBV4xkDTOOpyF6m6zV+tdhaUKdrwfDcuTVqMNcgJ7u7lALOzYI2LzGj45CNuY4khQ2FxtPEAiFKV YMtAYVvjA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jfO4R-00059A-Ok; Sun, 31 May 2020 13:32:11 +0000 Received: from mail-qk1-x742.google.com ([2607:f8b0:4864:20::742]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jfO4L-00058k-K4 for linux-arm-kernel@lists.infradead.org; Sun, 31 May 2020 13:32:07 +0000 Received: by mail-qk1-x742.google.com with SMTP id c185so6665247qke.7 for ; Sun, 31 May 2020 06:32:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=7mjQPFZLDY3zOJxS6K+hwBYDZ7ogeoyTkdPn+NbadQA=; b=OvQUeyLfMwrvAin4ZW+rJVAV3Brt0cXRGFYFkbwhjGFNAlulLUWx2u+XlDicCYbIIv cngSvARYr/W1RWxz62Nu9/fYPz98+YYIE53Mv5wST7j3b2/BZ+Ck8mzn/gm3kX/kiIjA fAg42ScpwGAu2VBrl+wgSz0uMRL2n4sMzy7Peq2EXcpiI5HB2Cz5TRdsCHZmpxEQrbaM 2hffWRCVFTk9uMmbVPUtjrifiAiqSS0uiWVBuJWkpUpP2QcBBHBKVdp+9FZbIqMo9v8k i1wOJg8tK0Q6N7B/MBkUAO30R4AE8SPalg+BkZoLrEosrQxINBJg49zXwiwBVsqLoOiF QIaA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=7mjQPFZLDY3zOJxS6K+hwBYDZ7ogeoyTkdPn+NbadQA=; b=h57r428RS82Ergpf+/4vcIXBPOm9SQME+IprVuibZJtJVoHymLPrwFL6/9L00FV5Me JtAnaVZprEYckX/JaAlxfWv9/+6vdK9La+GIuSjZ6eLu0LGdNuW/JwI1wb1vrDujPFLi QQ+YryY1/uz1/sHaPdGxnD0m4tFjJ6+Vh+6I/ZljPhTVLyKPDVb0uxWL5CLOIq2HRf5F PqCrmOjqeFwL4LNfjhQHBH9sbK6oa/WCvbCTQJxHrYLBpcL1v0hEw0S+SIn1/RvP+Zed 7rxUTdjzx12r8oIOQyzGjSha5oR2d38fm3PeAGbokABqYJy4TGWhE0enmK4PwsKUiCEN 2XKQ== X-Gm-Message-State: AOAM532j3PSAsY/qAPT5oZ9VQIXgYa5LBC3K7eVANjRsf5x1NPEwzosE ba76oskMX0U5RToIIVLKrZU= X-Google-Smtp-Source: ABdhPJyLqWvBTi+Blweff9xoUoSmEYagIdQTmznRqhCCEj/Zz7hVlATzQXnLTG1Q06c2kaU18tdn4w== X-Received: by 2002:a05:620a:1f6:: with SMTP id x22mr15510121qkn.199.1590931921668; Sun, 31 May 2020 06:32:01 -0700 (PDT) Received: from shinobu (072-189-064-225.res.spectrum.com. [72.189.64.225]) by smtp.gmail.com with ESMTPSA id q187sm11366164qka.34.2020.05.31.06.31.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 31 May 2020 06:32:00 -0700 (PDT) Date: Sun, 31 May 2020 09:31:47 -0400 From: William Breathitt Gray To: Pavel Machek Subject: Re: [PATCH v2 4/4] docs: counter: Document character device interface Message-ID: <20200531133131.GA6725@shinobu> References: <20200529132604.GB1339@bug> MIME-Version: 1.0 In-Reply-To: <20200529132604.GB1339@bug> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200531_063205_679091_C47B18C0 X-CRM114-Status: GOOD ( 22.47 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kamel.bouhara@bootlin.com, gwendal@chromium.org, david@lechnology.com, linux-iio@vger.kernel.org, patrick.havelange@essensium.com, alexandre.belloni@bootlin.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, mcoquelin.stm32@gmail.com, fabrice.gasnier@st.com, syednwaris@gmail.com, linux-stm32@st-md-mailman.stormreply.com, jic23@kernel.org, alexandre.torgue@st.com Content-Type: multipart/mixed; boundary="===============6416789360296114410==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============6416789360296114410== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="p4qYPpj5QlsIQJ0K" Content-Disposition: inline --p4qYPpj5QlsIQJ0K Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, May 29, 2020 at 03:26:04PM +0200, Pavel Machek wrote: > On Sat 2020-05-16 15:20:02, William Breathitt Gray wrote: > > This patch adds high-level documentation about the Counter subsystem > > character device interface. > >=20 > > Signed-off-by: William Breathitt Gray > > --- > > Documentation/driver-api/generic-counter.rst | 112 +++++++++++++------ > > 1 file changed, 76 insertions(+), 36 deletions(-) > >=20 > > diff --git a/Documentation/driver-api/generic-counter.rst b/Documentati= on/driver-api/generic-counter.rst > > index 8f85c30dea0b..58045b33b576 100644 > > --- a/Documentation/driver-api/generic-counter.rst > > +++ b/Documentation/driver-api/generic-counter.rst >=20 > > + > > +Counter chrdev > > +-------------- > > +Translates counter data to the standard Counter character device; data > > +is transferred via standard character device read/write calls. > > + > > +Sysfs Interface > > +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > + > > +Several sysfs attributes are generated by the Generic Counter interfac= e, > > +and reside under the `/sys/bus/counter/devices/counterX` directory, > > +where `X` is to the respective counter device id. Please see > > +Documentation/ABI/testing/sysfs-bus-counter for detailed information on > > +each Generic Counter interface sysfs attribute. > > + > > +Through these sysfs attributes, programs and scripts may interact with > > +the Generic Counter paradigm Counts, Signals, and Synapses of respecti= ve > > +counter devices. > > + > > +Counter Character Device > > +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D > > + > > +Counter character device nodes are created under the `/dev` directory = as > > +`counterX`, where `X` is the respective counter device id. Defines for > > +the standard Counter data types are exposed via the userspace > > +`include/uapi/linux/counter-types.h` file. > > + > > +The first 196095 bytes of the character device serve as a control > > +selection area where control exposure of desired Counter components and > > +extensions may be selected. Each byte serves as a boolean selection > > +indicator for a respective Counter component or extension. The format = of > > +this area is as follows: > > + > > +* For each device extension, a byte is required. > > +* For each Signal, a byte is reserved for the Signal component, and a > > + byte is reserved for each Signal extension. > > +* For each Count, a byte is reserved for the Count component, a byte is > > + reserved for the count function, a byte is reserved for each Synapse > > + action, and byte is reserved for each Count extension. > > + > > +The selected Counter components and extensions may then be interfaced > > +after the first 196095 bytes via standard character device read/write > > +operations. The number of bytes available for each component or > > +extension is dependent on their respective data type: u8 will have 1 > > +byte available, u64 will have 8 bytes available, strings will have 64 > > +bytes available, etc. >=20 > This looks like very, very strange interface, and not described in detail > required to understand it. >=20 > Could you take a look at input subsystem, /dev/input/event0? Perhaps it i= s=20 > directly usable, and if not something similar should probably be acceptab= le. >=20 > Best regards, > Pavel Yes, I don't think this is a good interface afterall. I'm implementing a different design for v3 that should be more intuitive. The input subsystem could be useful for streams of events such as timestamps, so I'll take a look at it as well in case something similar to it could be used. William Breathitt Gray --p4qYPpj5QlsIQJ0K Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEk5I4PDJ2w1cDf/bghvpINdm7VJIFAl7TscMACgkQhvpINdm7 VJLU9hAAjZE3eFls1/dM0bpj9fivaZE+WCka2FakUqh0/3e48BVKe4lgLXBKxvBV EYJrNH9fastmhGjWwI2JU9nVaTMUMeDZMtQFX6WccLR6wbZbncR6eDv/N2sn0VNB jqQ+QdidLI+0tHJIVhQCzgEE0G6J6OMlUI1XkolNQVFKc2AWyxVFOKYcXWVlOaJF 5RuNDd067JuwqUncPfnInAMsI/5310+8UTEDza3twfjg61EI5wzU/PB7CzeE5rpz uXex2BiRUcR/QQiNP1KjhrIyawQkBGhx4LKcqFGlx5QTwec/Jg7NmjyWEnSsboZg AnHu1w+b2UbsHhWWRSHDWB1m7qM+zKhDYTYVOr5d0u0qgvitqeOsOaux34/tNMTT cc4PTlf5zZFozDvTsilbLhNf5OhkIp5emAVCG5lXF4i0r7Q/jcRI0ScHZ3BSmL1p unxD66ZbwtxHej5HJWAdZ1VPGr0gjWL29q+cxK3B7RqOUgl5ZwYnKgUaqbJAOM6Q 2K8z+BqLVH975M33jnPm0PSRyCxLfYPN+vKcEgw/ly3Z/3b3LYePtsuxc7bo8kVA 7uNPKFaSp2VW1XCaAd0hqBx3/q/LZEQjaPGVFtWkrMpv/vnsJVWSPAoJO9+9T/zS HZ5TugHnAaPTVx7eo+0u7rzLOVv2wS5v0G0MU4KMwiN85Ws1Umo= =ca5o -----END PGP SIGNATURE----- --p4qYPpj5QlsIQJ0K-- --===============6416789360296114410== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============6416789360296114410==--