For custom ROM developers (LineageOS, /e/OS, GrapheneOS), compiling a kernel with MSS Ver.3 support requires:
: Identified primarily as ssudbus.sys located in the C:\Windows\System32 directory. samsung android modem device driver -mss ver.3-
Last updated: May 2026 – reflects MSS Ver.3 as found in Linux 5.4 and Android 14 (One UI 6.1). For custom ROM developers (LineageOS
When you inspect a Samsung kernel source (e.g., from SM-G991B or SM-A525F), you’ll find the driver under: from SM-G991B or SM-A525F)
Typical device tree node for MSS v3 on an Exynos 2200 device:
int mss_open() O_NOCTTY); if (mss_fd < 0) perror("Failed to open MSS v3 modem device"); return -1;