Struct capsules_extra::analog_comparator::AnalogComparator

pub struct AnalogComparator<'a, A: AnalogComparator<'a> + 'a> { /* private fields */ }

Implementations

impl<'a, A: AnalogComparator<'a>> AnalogComparator<'a, A>

pub fn new( analog_comparator: &'a A, channels: &'a [&'a <A as AnalogComparator<'a>>::Channel], grant: Grant<App, UpcallCount<1>, AllowRoCount<0>, AllowRwCount<0>> ) -> AnalogComparator<'a, A>

Trait Implementations

impl<'a, A: AnalogComparator<'a>> Client for AnalogComparator<'a, A>

fn fired(&self, channel: usize)

Upcall to userland, signaling the application

impl<'a, A: AnalogComparator<'a>> SyscallDriver for AnalogComparator<'a, A>

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

Control the analog comparator.

command_num

• 0: Driver existence check.
• 1: Perform a simple comparison. Input x chooses the desired comparator ACx (e.g. 0 or 1 for hail, 0-3 for imix)
• 2: Start interrupt-based comparisons. Input x chooses the desired comparator ACx (e.g. 0 or 1 for hail, 0-3 for imix)
• 3: Stop interrupt-based comparisons. Input x chooses the desired comparator ACx (e.g. 0 or 1 for hail, 0-3 for imix)
• 4: Get number of channels.

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.