Messages in this thread | | | Date | Fri, 22 Oct 2021 12:28:08 +0530 | From | Viresh Kumar <> | Subject | Re: [PATCH] i2c: virtio: Add support for zero-length requests |
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On 22-10-21, 14:51, Jie Deng wrote: > > + if (!virtio_has_feature(vdev, VIRTIO_I2C_F_ZERO_LENGTH_REQUEST)) { > > + dev_err(&vdev->dev, "Zero-length request feature is mandatory\n"); > > + return -EINVAL; > > > It might be better to return -EOPNOTSUPP ?
Maybe that or one of these:
#define EBADE 52 /* Invalid exchange */ #define EPROTO 71 /* Protocol error */ #define EPFNOSUPPORT 96 /* Protocol family not supported */ #define ECONNREFUSED 111 /* Connection refused */
Arnd, any suggestions ? This is about the mandatory feature not being offered by the device.
-- viresh
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