Version 0.31.10

​

Features

• 8 more Logitech webcams supported. The Logi 4K Pro, BRIO 4K Stream, C925e, C922 Pro, C920, C615, C270, and StreamCam now appear in lager instruments and can be added as webcam nets, joining the existing BRIO, BRIO HD, and C930e. Detection is catalog-driven — adding a future model is a one-line table entry — and each camera is mapped to its actual /dev/video capture node by walking sysfs, so setups mixing cameras with different node counts (a C920 exposes two, a BRIO four) resolve to the right device.
• lager battery models — list the battery models saved on the instrument. Battery simulators store models in numbered memory slots, but until now there was no way to see which slots actually held a model without walking to the front panel. The new read-only models command (also available in the battery TUI and the box’s /battery/command HTTP endpoint as list_models) prints each occupied slot plus the firmware’s built-in models — all valid inputs to the existing model command. On the Keithley 2281S the catalog is assembled from query-only slot probes, so listing never changes instrument state.

​

Bug Fixes

• Battery model readback now reports the actual loaded model. The driver previously read the “current model” with :BATT:STAT?, which per the 2281S reference manual reports charge/discharge status — not the model — so lager battery model, state, and the TUI header showed “DISCHARGE” whenever the output was idle, regardless of what was loaded. The same misread made model <slot> raise a false “slot is empty” error after every successful load. Readback and verification now use :BATT:MOD:RCL? (e.g. Model: slot 5 or Model: LI_ION4_2), and because the 2281S fails empty-slot recalls silently, a recall that doesn’t take effect is now reliably detected and reported with guidance instead of pretending to succeed.
• Built-in battery models are now loadable over SCPI. The 2281S manual prints two built-in model names with hyphens (LI-ION4_2, LEAD-ACID12), but the instrument’s SCPI parser rejects hyphens outright (error -102), so recalling those built-ins through Lager never worked. The driver now sends the underscore spellings the firmware actually accepts (LI_ION4_2, LEAD_ACID12) and accepts either spelling as input.
• Battery command errors no longer masquerade as “Resource busy”. When a battery driver raised a real error (like the empty-slot guidance above), the box’s /battery/command endpoint returned it as a 5xx, which made the CLI treat the endpoint as unavailable and fall through to its legacy direct-USB path — always failing with [Errno 16] Resource busy and burying the actual message. Driver errors are now returned as ordinary command failures, so the CLI and TUI display the real diagnosis.

​

Installation

pip install lager-cli==0.31.10

pip install --upgrade lager-cli

​

Resources