> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lagerdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Version 0.3.25

> February 18, 2026

## <u>Features</u>

### FT232H Instrument Support (SPI, I2C, GPIO)

Full support for the FTDI C232HM-DDHSL-0 cable as a Lager instrument, including:

* **SPI**: All 4 modes, frequencies 100kHz-10MHz, word sizes 8/16/32, LSB/MSB bit order, configurable CS polarity, and manual CS via external GPIO
* **I2C**: Scan, read, write, and transfer at standard (100kHz) and fast (400kHz) modes with NACK detection
* **GPIO**: Digital output, input, toggle on pins AD4-AD7 with file-based state caching across CLI commands
* Auto-discovery via `lager instruments` and net creation via `lager nets add-all`

### GPIO Hold Mode

* New `--hold` flag for `lager gpo` maintains the output state until Ctrl+C:
  ```bash theme={null}
  lager gpo gpio1 high --hold --box <BOX>
  ```

## <u>Bug Fixes</u>

* Fixed FT232H GPIO USB "Resource busy" error after Ctrl+C: the USB interface is now properly released when exiting hold mode, preventing subsequent commands from failing
* Fixed LabJack T7 SPI `SPI_OPTIONS` bit 0 (auto CS) not reliably driving the CS pin: switched to manual GPIO-based CS assert/deassert for all LabJack SPI transactions
* Fixed SPI configuration not persisting between CLI commands: added `_persist_params()` to SPI dispatcher matching the I2C pattern

## <u>Improvements</u>

* FT232H GPIO uses read-modify-write to avoid clobbering other pins' output state
* FT232H GPIO output latch is written before enabling pin direction to prevent brief glitches after USB reset
* FT232H SPI and I2C include USB disconnect recovery with exponential backoff retry logic
* LabJack T7 SPI warm-up sequence no longer uses auto CS to avoid spurious CS assertions to connected devices

## <u>Installation</u>

To install this version:

```bash theme={null}
pip install lager-cli==0.3.25
```

To upgrade from a previous version:

```bash theme={null}
pip install --upgrade lager-cli
```

## Resources

[View Release on PyPI](https://pypi.org/project/lager-cli/0.3.25/)