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power: supply: macsmc: Prevent shutdowns with macOS 27 firmware#517

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jannau merged 1 commit into
AsahiLinux:asahi-wipfrom
WhatAmISupposedToPutHere:gate-power
Jun 12, 2026
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power: supply: macsmc: Prevent shutdowns with macOS 27 firmware#517
jannau merged 1 commit into
AsahiLinux:asahi-wipfrom
WhatAmISupposedToPutHere:gate-power

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The SMC firmware included in macOS 27 changed the size of BCF0 key from 4 to 1 bytes. A failure to read it was interpreted as battery being at a critical level and caused undesired emergency shutdowns in certain cases

The SMC firmware included in macOS 27 changed the size of BCF0 key from
4 to 1 bytes. A failure to read it was interpreted as battery being at a
critical level and caused undesired emergency shutdowns in certain cases

Signed-off-by: Sasha Finkelstein <k@chaosmail.tech>
@jannau jannau merged commit b8ea6a0 into AsahiLinux:asahi-wip Jun 12, 2026
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