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| author | Alice Ryhl <aliceryhl@google.com> | 2026-10-13 12:29:02 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-10-13 15:57:43 +0200 |
| commit | ba9d2c7ea7f8fd02726241e9b93a2a31d30c77ea (patch) | |
| tree | abe50d2c9e7f05a65b462ca53bce564581282e0b /tools/lib/python/kdoc/python_version.py | |
| parent | 0ada43e79a5f23154c5146c3eaf595c9c1146976 (diff) | |
rust: miscdevice: add registration data to MiscDevice
Currently when fds for a miscdevice are opened, the only "global" data
they are given access to is the MiscDeviceRegistration value. However,
this value doesn't let you store any user-provided data, so there is no
way for different fds from the same miscdevice to interact with each
other. Thus, let the user specify a type to be stored in the
MiscDeviceRegistration in which the user can store whichever data they
would like.
The intended user of this patch is Rust course material. MiscDevice is a
nice and relatively easy to use API for someone's first driver, and
being able to persist data from fd to fd allows the student to interact
with their driver using 'cat' and 'echo', even though each call opens a
new fd.
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20261013-miscdevice-data-v2-1-d727496ed705@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/lib/python/kdoc/python_version.py')
0 files changed, 0 insertions, 0 deletions