Struct ControlChannel 

pub struct ControlChannel<T: UsbTransfer> { /* private fields */ }

GenCP control channel over a USB3 Vision bulk endpoint pair.

Sends GenCP commands (ReadReg, WriteReg, ReadMem, WriteMem) wrapped in the U3V prefix and receives acknowledgements from the device.

Implementations

impl<T: UsbTransfer> ControlChannel<T>

pub fn new( transport: Arc<T>, ep_in: u8, ep_out: u8, max_cmd_transfer: u32, max_ack_transfer: u32, ) -> Self

Create a new control channel.

max_cmd_transfer and max_ack_transfer come from the device’s SBRM (or USB descriptor) and cap the largest single bulk transfer.

pub fn set_timeout(&mut self, timeout: Duration)

Override the default control transaction timeout.

pub fn transport(&self) -> &Arc<T>

Access the underlying transport (e.g. to share with a stream).

pub fn read_register(&mut self, addr: u64) -> Result<u32, U3vError>

Read a single 32-bit register at addr.

pub fn write_register(&mut self, addr: u64, value: u32) -> Result<(), U3vError>

Write a single 32-bit register at addr.

pub fn read_mem(&mut self, addr: u64, len: usize) -> Result<Vec<u8>, U3vError>

Read len bytes starting at addr, automatically chunking across the device’s maximum acknowledgement transfer size.

pub fn write_mem(&mut self, addr: u64, data: &[u8]) -> Result<(), U3vError>

Write data starting at addr, automatically chunking across the device’s maximum command transfer size.