Type Alias ScreenSharedComponentType

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pub type ScreenSharedComponentType<S> = ScreenShared<'static, S>;

Aliased Type§

struct ScreenSharedComponentType<S> { /* private fields */ }

Implementations

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impl<'a, S> ScreenShared<'a, S>
where S: Screen<'a>,

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pub fn new( screen: &'a S, grant: Grant<App, UpcallCount<1>, AllowRoCount<capsules_extra::::screen_shared::{impl#1}::new::{constant#1}>, AllowRwCount<0>>, buffer: &'static mut [u8], apps_regions: &'a [AppScreenRegion], ) -> ScreenShared<'a, S>

Trait Implementations

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impl<'a, S> ScreenClient for ScreenShared<'a, S>
where S: Screen<'a>,

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fn command_complete(&self, r: Result<(), ErrorCode>)

The screen will call this function to notify that a command (except write) has finished.
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fn write_complete( &self, data: SubSliceMut<'static, u8>, r: Result<(), ErrorCode>, )

The screen will call this function to notify that the write command has finished. This is different from command_complete as it has to pass back the write buffer
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fn screen_is_ready(&self)

Some screens need some time to start, this function is called when the screen is ready.
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impl<'a, S> SyscallDriver for ScreenShared<'a, S>
where S: Screen<'a>,

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fn command( &self, command_num: usize, data1: usize, data2: usize, process_id: 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.
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fn allocate_grant(&self, processid: ProcessId) -> Result<(), Error>

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