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Date:   Tue, 29 Jun 2021 15:46:27 +0530
From:   Viresh Kumar <viresh.kumar@linaro.org>
To:     Wolfram Sang <wsa@kernel.org>, Jie Deng <jie.deng@intel.com>,
        linux-i2c@vger.kernel.org,
        virtualization@lists.linux-foundation.org,
        linux-kernel@vger.kernel.org, mst@redhat.com, jasowang@redhat.com,
        andriy.shevchenko@linux.intel.com, conghui.chen@intel.com,
        arnd@arndb.de, kblaiech@mellanox.com,
        jarkko.nikula@linux.intel.com, Sergey.Semin@baikalelectronics.ru,
        rppt@kernel.org, loic.poulain@linaro.org, tali.perry1@gmail.com,
        u.kleine-koenig@pengutronix.de, bjorn.andersson@linaro.org,
        yu1.wang@intel.com, shuo.a.liu@intel.com, stefanha@redhat.com,
        pbonzini@redhat.com
Subject: Re: [PATCH v10] i2c: virtio: add a virtio i2c frontend driver
Message-ID: <20210629101627.kwc2rszborc3kvjs@vireshk-i7>
References: <226a8d5663b7bb6f5d06ede7701eedb18d1bafa1.1616493817.git.jie.deng@intel.com>
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On 29-06-21, 12:07, Wolfram Sang wrote:
> > +static u32 virtio_i2c_func(struct i2c_adapter *adap)
> > +{
> > +	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
> 
> You are not emulating I2C_FUNC_SMBUS_QUICK, so you need to mask it out.

What is it that we need to have to emulate it ? I did use it in my
qemu and rust backends, not sure if this was ever sent by device I
used for testing SMBUS though.

-- 
viresh