[Hamlib-developer] [Hamlib/Hamlib] 65ce74: FT-857: add PKTFM and PKTLSB mode support

[dforsi <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/Hamlib/Hamlib
  Commit: 65ce74ca51087b10af2c1ef4d03e59a3f2b4770b
      https://github.com/Hamlib/Hamlib/commit/65ce74ca51087b10af2c1ef4d03e59a3f2b4770b
  Author: jbdubbs <ja...@we...>
  Date:   2026-08-16 (Sun, 16 Aug 2026)

  Changed paths:
    M rigs/yaesu/ft857.c

  Log Message:
  -----------
  FT-857: add PKTFM and PKTLSB mode support

dump_caps/M ? for the FT-857 was missing two modes the radio genuinely
supports:

- PKTFM (9600bps packet FM, CAT byte 0x0c): a pure capability-
  advertisement gap. The CAT command and set_mode()/get_mode() handling
  already existed; RIG_MODE_PKTFM was just never added to
  FT857_ALL_RX_MODES/FT857_OTHER_TX_MODES, so it was never reachable.

- PKTLSB: the FT-857's CAT protocol has only one generic "DIG" mode
  command (0x0a), with no parameter to select LSB vs USB. The actual
  sideband is a value stored in rig EEPROM (address 0x0078, bits 5-7),
  the same location ft857_get_status() already reads to report
  PKTLSB/PKTUSB back via get_mode() -- but there was no corresponding
  write path. set_mode() now writes that EEPROM byte (via a new
  FT857_NATIVE_CAT_EEPROM_WRITE command, CAT byte 0xbc) to the generic
  "USER" DIG submode with the requested sideband immediately after
  sending the DIG command, so PKTUSB/PKTLSB round-trip deterministically
  instead of depending on whatever DIG submode was last set on the
  radio's own front panel. The write is skipped when the EEPROM byte
  already matches, to avoid burning a write cycle for no change.

This mirrors the equivalent, already-upstream fix for the sibling
FT-817 (#1308, commit acc42665e), which uses the same EEPROM-write
mechanism at a different address (0x65 on the FT-817 vs 0x0078 here).

Verified on real FT-857D hardware, both directions (PKTUSB<->PKTLSB)
plus PKTFM, including confirming RTTY's existing auto-fallback to
PKTUSB still behaves correctly.

Fixes #2142


  Commit: b32c766782d15a6f0cfdadd269e383d248d5feb4
      https://github.com/Hamlib/Hamlib/commit/b32c766782d15a6f0cfdadd269e383d248d5feb4
  Author: dforsi <iu...@gm...>
  Date:   2026-09-19 (Sat, 19 Sep 2026)

  Changed paths:
    M rigs/yaesu/ft857.c

  Log Message:
  -----------
  Merge pull request #2151 from jbdubbs/ft857-pktfm-pktlsb

FT-857: add PKTFM and PKTLSB mode support


Compare: https://github.com/Hamlib/Hamlib/compare/710032131712...b32c766782d1

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