b5769ac1f1
DisplayPort kernel driver passes error code/status to hardware composer via the dp_hotplug_error_code sysfs file. When HWC receives/consumes the error, it will write "0" into that file to reset the error code. So this file must be readable and writable by the HWC code running with "system" user/group permissions. Previously we used to set the ownership to system:system, but in order to be more consistent with the rest of sysfs files in that directory, we can use root:graphics instead with permissions 0664. HWC runs under the "graphics" group, so this should allow HWC write access. Bug: 324953626 Test: checked permissions of dp_hotplug_error_code sysfs Change-Id: Idf65acc12d158a78565c41f4e2aea24362e2cdff |
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