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  • Shared protocol library: C library implementing framing, CRC, commands, and state machine

    • The driver allocates a kernel-mode ring buffer of 16 MB per device instance to prevent data loss during system load spikes. User-mode applications access this buffer via IOCTL calls (Windows) or read() on /dev/fs_sm100 (Linux).

  • Error codes: standardized 1-byte error in ACK packet

    • | Version | Date | Changes | |---------|------|---------| | 3.5.2 | 2025-12-01 | Security fix for CRC buffer over-read | | 3.5.1 | 2025-09-10 | Linux 6.2 compatibility patch | | 3.5.0 | 2025-06-15 | Added ring buffer overflow counter |

    Fs-sm100 Usb Driver

  • Shared protocol library: C library implementing framing, CRC, commands, and state machine

    • The driver allocates a kernel-mode ring buffer of 16 MB per device instance to prevent data loss during system load spikes. User-mode applications access this buffer via IOCTL calls (Windows) or read() on /dev/fs_sm100 (Linux).

  • Error codes: standardized 1-byte error in ACK packet

    • | Version | Date | Changes | |---------|------|---------| | 3.5.2 | 2025-12-01 | Security fix for CRC buffer over-read | | 3.5.1 | 2025-09-10 | Linux 6.2 compatibility patch | | 3.5.0 | 2025-06-15 | Added ring buffer overflow counter |