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S-View ALL the Covers!

Forces S-View to work with 3rd party cases on Samsung's 4.4.2, bypassing verification.

Technical details

Samsung's KitKat update started checking sysfs for values populated when a case is connected.

The aforementioned sysfs paths are:

  • Color: /sys/devices/w1_bus_master1/w1_master_check_color
  • Height: /sys/devices/w1_bus_master1/w1_master_check_height
  • Width: /sys/devices/w1_bus_master1/w1_master_check_width
  • Type: /sys/devices/w1_bus_master1/w1_master_check_id
  • Verification: /sys/devices/w1_bus_master1/w1_master_verify_mac

Cover type is 2 for 3rd party cases, further digging into Samsung's code revealed that the possible IDs are:

  • 0 = standard flip cover
  • 1 = S-View cover
  • 2 = No cover
  • 3 = S-View cover with Qi charging

This module forces type 1, and disables verification by always returning true.