For what it's worth, I've been using a BabyFace Pro on Mac for years, ADAT-connected to an RME rack ADC/DAC to enable all available audio channels, and it's been as rock-solid as any hardware I've ever owned.
Note that, while the BabyFace Pro doesn't have native Linux or BSD drivers, it does have a USB class-compliant mode that, while feature-limited compared to the proprietary drivers, may be sufficient for DAW use — AFAIK, the primary limitation is limited control over the hardware mixer, so problematic if you need low-latency monitoring of multiple input channels simultaneously, but possibly irrelevant otherwise.
There's also a full-featured iPad mixer app that works in class-compliant mode, so full control is at least theoretically possible, lack of published details notwithstanding, and there appears to be at least some support for this in the Linux kernel,
Note that, while the BabyFace Pro doesn't have native Linux or BSD drivers, it does have a USB class-compliant mode that, while feature-limited compared to the proprietary drivers, may be sufficient for DAW use — AFAIK, the primary limitation is limited control over the hardware mixer, so problematic if you need low-latency monitoring of multiple input channels simultaneously, but possibly irrelevant otherwise.
There's also a full-featured iPad mixer app that works in class-compliant mode, so full control is at least theoretically possible, lack of published details notwithstanding, and there appears to be at least some support for this in the Linux kernel,
https://github.com/torvalds/linux/blob/2eb29d59ddf02e39774ab...