MC-F26: camera module whose stock firmware uses the 'standard sigmastar'
  4.9.84 kernel and I6B0 SDK and ships an SC3338 driver

Sensor
- The stock MCF26_V0-A_BU_LIGHT firmware ships
  /opt/ch/drv_ms_cus_sc3338_MIPI_dn.ko (measured)
  (https://t.me/c/1166652144/72840)

Interfaces and pinout
- Tino pointed out the PM_UART location: "here is your PM_UART"
  (https://t.me/c/1166652144/108754)

Firmware support (OpenIPC / majestic / stock)
- "that firmware use 'standard sigmastar' 4.9.84 kernel and I6B0 sdk."
  (https://t.me/c/1166652144/72844)

Catalogue comparison
- The catalogue lists SC3336; Tino's evidence above gives SC3338
  (https://t.me/c/1166652144/72840)

Photos
- A close-up of the MC-F26 (SSC335) with its UART pads marked in green
  (https://t.me/c/1166652144/108754)