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set_latency_timer: allow 0ms duration #71

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merged 1 commit into from
Oct 19, 2023
Merged

set_latency_timer: allow 0ms duration #71

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5 changes: 2 additions & 3 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -860,11 +860,11 @@ pub trait FtdiCommon {
/// is used to flush remaining data from the receive buffer was fixed at
/// 16 ms.
/// In all other FTDI devices, this timeout is programmable and can be set
/// at 1 ms intervals between 2ms and 255 ms. This allows the device to be
/// at 1 ms intervals between 0ms and 255 ms. This allows the device to be
/// better optimized for protocols requiring faster response times from
/// short data packets.
///
/// The valid range for the latency timer is 2 to 255 milliseconds.
/// The valid range for the latency timer is 0 to 255 milliseconds.
///
/// The resolution for the latency timer is 1 millisecond.
///
Expand All @@ -887,7 +887,6 @@ pub trait FtdiCommon {
/// [pyftdi]: https://github.com/eblot/pyftdi/tree/master
fn set_latency_timer(&mut self, timer: Duration) -> Result<(), FtStatus> {
let millis = timer.as_millis();
debug_assert!(millis >= 2, "duration must be >= 2ms, got {timer:?}");
debug_assert!(millis <= 255, "duration must be <= 255ms, got {timer:?}");
let millis = u8::try_from(millis).unwrap();
trace!("FT_SetLatencyTimer({:?}, {})", self.handle(), millis);
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