Files
ModemManager/src/plugins
Maciej S. Szmigiero 5059b812fc intel: XMM7360: RPC and AT port interlocking
We have to avoid sending RPC and AT commands at the same time (even thought
they are sent via different serial ports) since apparently this modems does
not like it.

It also looks like this modem does not like to receive a RPC command soon
after an AT one, since such RPC commands sometimes fail to generate any
response.

Prevent this problem by delaying a RPC command if there was an AT command
completed recently.

The sufficient time gap was determined experimentally, but 300 ms seems to
be enough.

RPC commands are relatively rare so this should not be a performance issue.
Otherwise we often never get any response to RPC calls if AT command
happens to be sent at the same time.

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
2025-06-14 16:02:23 -05:00
..
2025-03-11 23:15:57 +01:00
2025-03-11 23:15:57 +01:00

The following list shows the relationship among the different plugins provided
by default by ModemManager. For each of the plugin types, the list of modem
objects created by the plugin is given.

 * Altair:
   ** MMBroadbandModemAltairLte

 * Anydata:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemAnydata

 * Cinterion:
   ** MMBroadbandModemQmiCinterion
   ** MMBroadbandModemCinterion

 * Dell:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemFoxconnT77w968    (from the Foxconn utils)
   ** MMBroadbandModemMbimXmm           (from the XMM utils)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModemNovatel           (from the Novatel utils)
   ** MMBroadbandModemSierra            (from the Sierra Legacy utils)
   ** MMBroadbandModemTelit             (from the Telit utils)
   ** MMBroadbandModemXmm               (from the XMM utils)
   ** MMBroadbandModem                  (generic)

 * D-Link:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModem                  (generic)

 * Fibocom:
   ** MMBroadbandModemMbimXmm           (from the XMM utils)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModemXmm               (from the XMM utils)
   ** MMBroadbandModem                  (generic)

 * Foxconn:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemFoxconnT77w968
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModem                  (generic)

 * Generic:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModem                  (generic)

 * Gosuncn:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModem                  (generic)

 * Haier:
   ** MMBroadbandModem                  (generic)

 * Huawei:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModemHuawei

 * Icera (no explicit plugin):
   ** MMBroadbandModemIcera

 * Iridium:
   ** MMBroadbandModemIridium

 * Linktop:
   ** MMBroadbandModemLinktop

 * Longcheer:
   ** MMBroadbandModemLongcheer

 * MBM:
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModemMbm

 * Motorola:
   ** MMBroadbandModemMotorola

 * Mtk:
   ** MMBroadbandModemMtk

 * Nokia:
   ** MMBroadbandModemNokia

 * Nokia Icera:
   ** MMBroadbandModemIcera             (from the Icera utils)

 * Novatel:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemNovatel

 * Novatel LTE:
   ** MMBroadbandModemNovatelLte

 * Option:
   ** MMBroadbandModemOption

 * Option HSO:
   ** MMBroadbandModemHso

 * Pantech:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemPantech

 * Quectel:
   ** MMBroadbandModemQmiQuectel
   ** MMBroadbandModemQuectel

 * Samsung:
   ** MMBroadbandModemSamsung           (subclassed from the Icera utils)

 * Sierra Legacy:
   ** MMBroadbandModemSierraIcera       (subclassed from the Icera utils)
   ** MMBroadbandModemSierra

 * Sierra:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModem                  (generic)

 * Simtech:
   ** MMBroadbandModemQmiSimtech
   ** MMBroadbandModemSimtech

 * Telit:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemMbimTelit
   ** MMBroadbandModemTelit

 * Thuraya
   ** MMBroadbandModemThuraya

 * TP-Link:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModem                  (generic)

 * u-blox:
   ** MMBroadbandModemUblox

 * via:
   ** MMBroadbandModemVia

 * wavecom:
   ** MMBroadbandModemWavecom

 * x22x:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemX22x

 * XMM (no explicit plugin):
   ** MMBroadbandModemMbimXmm
   ** MMBroadbandModemXmm

 * ZTE
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModemZteIcera          (subclassed from the Icera utils)
   ** MMBroadbandModemZte