// mailbox: hardware-monitoring queries for QEMU `-M virt`. // // virt exposes no VideoCore mailbox (it is a Pi-firmware interface), so // the SoC temperature and ARM-clock readings the property channel would // answer have no source here. Both queries degrade to 0, which callers // treat as "unknown" and render as `n/a`. This stub mirrors only the // two methods board.mailbox reaches; the EMMC2/GPIO/power mailbox traffic // is rpi4b-only and never routes through this alias. // SoC temperature in milli-degrees Celsius; always 0 (no sensor). pub fn getTemperature() u32 { return 0 } // ARM core clock in Hz; always 0 (no firmware to ask). pub fn getCpuClock() u32 { return 0 }