Hello,
brand-new kernel newbie here. I'm interested in the Rust side of the
kernel. To get acquainted, I'm following the Linux Driver Development
book, 3rd edition, also integrating it with modern documentation and
best practices (or at least I hope so).
I'm developing the scull module on top of the
`kernel::miscdevice::MiscDevice` trait. Where I'm stuck at is the lack
of the `kernel::file::Operations` trait [1], that most online resources
refer to. I need such trait to implement read and write operations for
the misc device. AFAIU, this trait used to exist but it's no longer in
the mainline codebase [2]. Also, `kernel::miscdevice::MiscdeviceVTable`
is private inside the miscdevice module, so there's no way I can somehow
extend it.
Is there any workaround for what I want to achieve, or is ioctl the only
allowed interface to misc devices in Rust?
Thank you,
Fabio.
[^1]:
https://rust-for-linux.github.io/docs/kernel/file/trait.Operations.html
[^2]: https://rust.docs.kernel.org/kernel/fs/index.html
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