Struct capsules_extra::ninedof::NineDof

pub struct NineDof<'a> { /* private fields */ }

Implementations

impl<'a> NineDof<'a>

pub fn new( drivers: &'a [&'a dyn NineDof<'a>], grant: Grant<App, UpcallCount<1>, AllowRoCount<0>, AllowRwCount<0>> ) -> NineDof<'a>

Trait Implementations

impl NineDofClient for NineDof<'_>

fn callback(&self, arg1: usize, arg2: usize, arg3: usize)

Signals a command has finished. The arguments will most likely be passed over the syscall interface to an application.

impl SyscallDriver for NineDof<'_>

fn command( &self, command_num: usize, arg1: usize, _: usize, processid: ProcessId ) -> CommandReturn

System call for a process to perform a short synchronous operation or start a long-running split-phase operation (whose completion is signaled with an upcall). Command 0 is a reserved command to detect if a peripheral system call driver is installed and must always return a CommandReturn::Success.

fn allocate_grant(&self, processid: ProcessId) -> Result<(), Error>

Request to allocate a capsule’s grant for a specific process.

fn allow_userspace_readable( &self, app: ProcessId, which: usize, slice: ReadWriteProcessBuffer ) -> Result<ReadWriteProcessBuffer, (ReadWriteProcessBuffer, ErrorCode)>

System call for a process to pass a buffer (a UserspaceReadableProcessBuffer) to the kernel that the kernel can either read or write. The kernel calls this method only after it checks that the entire buffer is within memory the process can both read and write.