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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