From patchwork Sun Mar 16 13:50:07 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sam Winchenbach X-Patchwork-Id: 14018438 Received: from out-10.pe-a.jellyfish.systems (out-10.pe-a.jellyfish.systems [198.54.127.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9B7471AAA2F; Sun, 16 Mar 2025 14:00:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.54.127.74 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742133603; cv=none; b=W+pRwGy6pa4DhbPXqRSJE/Ob/8fcl1Y0Pg1+nQlwHPGeM+Bl6zxSLQZz8KJDC5CFg03uGY9sWULh6PAWS/EjsGb6M+r4k/hs+uX5g7DGa/oMHwr4kvar5mdpopLLPqveF/I422czo+p8iLP+HmZUyJLc/Q0XGMgahK07BiZAUF0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742133603; c=relaxed/simple; bh=ljc3oesl2r1E8aZ9fXFZUkkJvxGlE5eoRSoQ7GRd9BI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fIccF/1e5W1iG7je1/tBAmB6h/bBe5IRbQn3u8aOn3dp7CTNMi4H4JGrKzNhZM07j7NIPNxeVCmWTq72SSoqc6XOhXcP6uWZe4xVab1C0Dt5fmMoEDb6yQqHmAHv0DiLbCrhyxJUObNAuJtVBwWMc9wqawBrHzTMqfanWp7/DzM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=framepointer.org; spf=pass smtp.mailfrom=framepointer.org; dkim=pass (2048-bit key) header.d=framepointer.org header.i=@framepointer.org header.b=W6mUAXpG; arc=none smtp.client-ip=198.54.127.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=framepointer.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=framepointer.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=framepointer.org header.i=@framepointer.org header.b="W6mUAXpG" Received: from prod-lbout-phx.jellyfish.systems (new-01-3.privateemail.com [66.29.159.56]) by pe-a.jellyfish.systems (Postfix) with ESMTPA id 4ZFzzr6ZFZz9sSS; Sun, 16 Mar 2025 13:51:52 +0000 (UTC) Received: from MTA-12.privateemail.com (unknown [10.50.14.28]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by NEW-01-3.privateemail.com (Postfix) with ESMTPS id 4ZFzzr5jLlz2Sd0Q; Sun, 16 Mar 2025 09:51:52 -0400 (EDT) Received: from mta-12.privateemail.com (localhost [127.0.0.1]) by mta-12.privateemail.com (Postfix) with ESMTP id 4ZFzzr4Mv1z3hhS4; Sun, 16 Mar 2025 09:51:52 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=framepointer.org; s=default; t=1742133112; bh=ljc3oesl2r1E8aZ9fXFZUkkJvxGlE5eoRSoQ7GRd9BI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=W6mUAXpGW8eKDsk3RQqQf1r5sfZB1CoTtBbxRLZD63/fIA8qfKnmaH56gbUup/McR TsshCVehpJ4BjwfGTIrocewkeLKZR5PhYYaBY+a/w2vYkr4u1CpPY4m7oZyOE41djE kPqnJY/yq1jRZJUI6/UVyEepEUZXRb57PWxDZumxb+WrqFaR43qsOi5AUdBJF9ntnm pz7lqrkUFtTxceofxLH4Jo7m5l/FrDFkzTSjhv89C8XaIlzyW9BNlkDxN+G0DiPp/x KX0YW634bPJOL3VYaPnMGYf3v9D+PzfCEJp9Tz2YXXDfR4D0tHr0sMSK3dEJC+XKLp FYIuBHY/QyBlg== Received: from 65YTFL3.secure.tethers.com (unknown [152.44.190.141]) by mta-12.privateemail.com (Postfix) with ESMTPA; Sun, 16 Mar 2025 09:51:36 -0400 (EDT) From: Sam Winchenbach To: linux-kernel@vger.kernel.org Cc: lars@metafoo.de, Michael.Hennerich@analog.com, antoniu.miclaus@analog.com, jic23@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, sam.winchenbach@framepointer.org, bpellegrino@arka.org, Sam Winchenbach Subject: [PATCH v7 5/6] iio: core: Add support for writing 64 bit attrs Date: Sun, 16 Mar 2025 09:50:07 -0400 Message-ID: <20250316135008.155304-5-sam.winchenbach@framepointer.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250316135008.155304-1-sam.winchenbach@framepointer.org> References: <20250316135008.155304-1-sam.winchenbach@framepointer.org> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Virus-Scanned: ClamAV using ClamSMTP From: Sam Winchenbach Prior to this patch it was only possible to read 64 bit integers. Signed-off-by: Sam Winchenbach --- drivers/iio/industrialio-core.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index a2117ad1337d..b2436b8f3eea 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -965,8 +965,10 @@ static ssize_t iio_write_channel_info(struct device *dev, struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret, fract_mult = 100000; int integer, fract = 0; + long long integer64; bool is_char = false; bool scale_db = false; + bool is_64bit = false; /* Assumes decimal - precision based on number of digits */ if (!indio_dev->info->write_raw) @@ -990,6 +992,9 @@ static ssize_t iio_write_channel_info(struct device *dev, case IIO_VAL_CHAR: is_char = true; break; + case IIO_VAL_INT_64: + is_64bit = true; + break; default: return -EINVAL; } @@ -1000,6 +1005,13 @@ static ssize_t iio_write_channel_info(struct device *dev, if (sscanf(buf, "%c", &ch) != 1) return -EINVAL; integer = ch; + } else if (is_64bit) { + ret = kstrtoll(buf, 0, &integer64); + if (ret) + return ret; + + fract = (int)(integer64 >> 32); + integer = (int)(integer64 & 0xFFFFFFFF); } else { ret = __iio_str_to_fixpoint(buf, fract_mult, &integer, &fract, scale_db);