| commit | c88eec0dbc4dd4aa76164c83f399cf2f63e76be1 | [log] [tgz] |
|---|---|---|
| author | David Gilhooley <dgilhooley@google.com> | Fri Jan 18 10:33:05 2019 -0800 |
| committer | David Gilhooley <dgilhooley@google.com> | Wed Jan 23 15:05:31 2019 -0800 |
| tree | 08aa0789b93615bdc16bfcd10bdc6e61a67f00d2 | |
| parent | 488c4084524b5bea99364ccacce9fb4c16d26e5c [diff] |
[zircon][hid-parser] Add ability to extract values with units Our ExtractUint functions are returning the raw data from the report. This is not enough for a device that expects to be able to read the report information in the context of a certain unit. ExtractWithUnit takes care of doing sign extensions and logical to physical value conversions so the value it returns actually represents the Unit outlined by the HID report descriptor. This also fixes a bug where Max physical/logical values need to be unsigned if the Min value is greater than or equal to zero. TEST: fx shell runtests -a -t hidparse-test Change-Id: Id19b466cffd97d7ba5b132ae48d87c07ccfdd2f4
Zircon is the core platform that powers the Fuchsia OS. Zircon is composed of a microkernel (source in kernel/...) as well as a small set of userspace services, drivers, and libraries (source in system/...) necessary for the system to boot, talk to hardware, load userspace processes and run them, etc. Fuchsia builds a much larger OS on top of this foundation.
The canonical Zircon Git repository is located at: https://fuchsia.googlesource.com/zircon
A read-only mirror of the code is present at: https://github.com/fuchsia-mirror/zircon
The Zircon Kernel provides syscalls to manage processes, threads, virtual memory, inter-process communication, waiting on object state changes, and locking (via futexes).
Currently there are some temporary syscalls that have been used for early bringup work, which will be going away in the future as the long term syscall API/ABI surface is finalized. The expectation is that there will be about 100 syscalls.
Zircon syscalls are generally non-blocking. The wait_one, wait_many port_wait and thread sleep being the notable exceptions.
This page is a non-comprehensive index of the zircon documentation.