Commit Graph

54 Commits

Author SHA1 Message Date
Aleksander Morgado
e4d4bbbb72 huawei: plug memleak when processing GETPORTMODE hints
==99766== 96 (24 direct, 72 indirect) bytes in 1 blocks are definitely lost in loss record 3,791 of 4,243
   ==99766==    at 0x483E7C5: malloc (vg_replace_malloc.c:380)
   ==99766==    by 0x50DCAC9: g_malloc (gmem.c:106)
   ==99766==    by 0x50F46D6: g_slice_alloc (gslice.c:1069)
   ==99766==    by 0x50CE9F2: g_list_insert_sorted_real (glist.c:1109)
   ==99766==    by 0x753DE92: ???
   ==99766==    by 0x753E6D4: ???
   ==99766==    by 0x753E897: ???
   ==99766==    by 0x1F059D: mm_plugin_create_modem (mm-plugin.c:922)
   ==99766==    by 0x166693: mm_device_create_modem (mm-device.c:481)
   ==99766==    by 0x161547: device_support_check_ready (mm-base-manager.c:219)
   ==99766==    by 0x4F03533: g_task_return_now (gtask.c:1219)
   ==99766==    by 0x4F07078: UnknownInlinedFun (gtask.c:1289)
   ==99766==    by 0x4F07078: g_task_return (gtask.c:1245)
2021-07-27 00:10:02 +02:00
Aleksander Morgado
1b35d74c15 kernel-device: add get_interface_number() method
We already have methods to query for interface specific attributes
like class/subclass/protocol, so add a new one for the interface
number, and make sure we use ATTRS{bInterfaceNumber} to load it
always, instead of assuming the ID_USB_INTERFACE_NUM property is set.
2021-02-24 20:47:57 +01:00
Aleksander Morgado
950abbf8ee core: stop monitoring the 'usb' subsystem
Back in Linux < 3.6 days, the cdc-wdm ports exposed by the QMI driver
were flagged as owned by the 'usb' subsystem. That changed in 3.6 when
the subsystem was renamed to 'usbmisc':

  https://mail.gnome.org/archives/networkmanager-list/2012-June/msg00125.html

This patch removes all monitoring of the 'usb' subsystem completely,
which is anyway a valid subsystem but for which we shouldn't need any
special handling. Right now, with newer kernels, we were using that
monitoring exclusively to get notified of full USB device remove
events, which is really not required as we already process the port
removals one by one.

We simplify the logic everywhere that attempted to match either the
'usb' or 'usbmisc' subsystems, and we no longer require the explicit
checks for the port name being named 'cdc-wdm[0-9]*' in the code, as
that is already taken care of by the ID_MM_CANDIDATE udev tag rule.
2020-11-13 08:57:06 +00:00
Aleksander Morgado
30f0824ea1 huawei: apply GETPORTMODE hints to serial ports in order
The numbers associated to each port mode given by the AT^GETPORTMODE
response are not USB interface numbers, they are 'port numbers'.
Moreover, these numbers may start either at 0 or at 1, depending on
the firmware.

The only reasonable way to parse this response is to just gather the
order of all the port modes reported, and apply the modes to each
serial port found in the system in the same order.

Fixes https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/issues/239
2020-11-04 11:15:19 +00:00
Aleksander Morgado
b2621b4336 huawei: plugin already processes generic tags
So don't re-process them in the generic modem when grabbing the port.
2020-11-04 11:15:18 +00:00
Aleksander Morgado
824ad11356 huawei: don't apply multiple port type hints methods
We will use one single method to apply port type hints, not a mix of
them:
  * If AT^GETPORTMODE is supported, prefer its hints over any other
    method.
  * Otherwise, try to guess hints from USB interface descriptions.
  * And if none of the plugin-specific hints are supported, we'll
    default to applying generic port type hints from udev tags.

Once the hints have been applied by one of the methods above, the
fallback hint sequences are run:
  * Flag the first cdc-wdm port as primary if no other port has been
    flagged as primary.
  * Flag the USB interface 0 as PPP if no other port type hint has
    been set in any other port.

The logic applying all these procedures has been refactored so that we
have separate functions for each, which is much easier to read and
follow, even if it requires multiple iterations over the port probe
list.

Fixes https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/issues/238
2020-11-04 11:15:18 +00:00
Aleksander Morgado
4b058872a0 plugins: don't add plugin name in log message explicitly 2020-04-08 17:53:42 +02:00
Aleksander Morgado
8722215f7e plugins: use logging module name as plugin name 2020-04-08 17:53:42 +02:00
Aleksander Morgado
1cb39536e9 huawei: port to use object logging 2020-04-08 16:35:09 +02:00
Aleksander Morgado
6eabfd27bf huawei: only tag GETPORTMODE supported if it was really used
E.g. do nothing if the response is empty:

 <debug> (ttyUSB1): -->'AT^GETPORTMODE<CR>'
 <debug> (ttyUSB1): <--'<CR><LF>^GETPORTMODE: TYPE: WCDMA: Huawei Technologies Co.,Ltd.,<CR><LF><CR><LF>OK<CR><LF>'
2020-03-03 17:23:07 +00:00
Aleksander Morgado
353e27065d huawei: try to read port type hints from interface descriptions
So far, we're really only interested in the "modem" and "pcui" ports.

  root@9d52738:/sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4# find . -name interface|sort
  ./1-1.4:2.0/interface
  ./1-1.4:2.1/interface
  ./1-1.4:2.2/interface
  ./1-1.4:2.3/interface
  ./1-1.4:2.4/interface
  ./1-1.4:2.5/interface
  ./1-1.4:2.6/interface

  root@9d52738:/sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4# find . -name interface|sort|xargs cat
  CDC Ethernet Control Model (ECM)
  CDC Ethernet Data
  Huawei Mobile Connect - Modem
  Huawei Mobile Connect - Application
  Huawei Mobile Connect - Pcui
  Huawei Mobile Connect - Ctrl
  Huawei Mobile Connect - Serial B

Fixes https://gitlab.freedesktop.org/mobile-broadband/ModemManager/issues/170
2020-03-03 17:23:07 +00:00
Aleksander Morgado
5da33df35b huawei: avoid attempting to complete GTask twice 2020-02-26 13:12:20 +01:00
Aleksander Morgado
2753afb73c huawei: fix warnings with -Wsign-compare
huawei/mm-plugin-huawei.c: In function ‘try_next_usbif’:
  huawei/mm-plugin-huawei.c:234:30: error: comparison of integer expressions of different signedness: ‘guint’ {aka ‘unsigned int’} and ‘gint’ {aka ‘int’} [-Werror=sign-compare]
    234 |                        usbif < closest) {
        |                              ^
  huawei/mm-plugin-huawei.c: In function ‘propagate_port_mode_results’:
  huawei/mm-plugin-huawei.c:439:27: error: comparison of integer expressions of different signedness: ‘guint’ {aka ‘unsigned int’} and ‘int’ [-Werror=sign-compare]
    439 |             if (usbif + 1 == GPOINTER_TO_INT (g_object_get_data (G_OBJECT (device), TAG_HUAWEI_PCUI_PORT))) {
        |                           ^~
  huawei/mm-plugin-huawei.c:442:34: error: comparison of integer expressions of different signedness: ‘guint’ {aka ‘unsigned int’} and ‘int’ [-Werror=sign-compare]
    442 |             } else if (usbif + 1 == GPOINTER_TO_INT (g_object_get_data (G_OBJECT (device), TAG_HUAWEI_MODEM_PORT)))
        |                                  ^~
  huawei/mm-plugin-huawei.c:445:32: error: comparison of integer expressions of different signedness: ‘guint’ {aka ‘unsigned int’} and ‘int’ [-Werror=sign-compare]
    445 |                      usbif + 1 == GPOINTER_TO_INT (g_object_get_data (G_OBJECT (device), TAG_HUAWEI_NDIS_PORT)))
        |                                ^~
2020-01-31 15:18:35 +01:00
Aleksander Morgado
548b7f8847 base-modem: load AT port type hints when adding port
We keep the pflags input in mm_base_modem_grab_port() so that plugins
can use other methods to gather port type hints (e.g. querying with AT
commands as in Huawei/Telit or looking at sysfs properties as in HSO).

For standard udev tag port type hints, it will be the base modem
looking them up.

Note that there is no longer any need to ignore non-flagged ports for
those modems that require primary/secondary flags. They will be
implicitly ignored when mm_base_modem_organize_ports() decides which
ports to use, as the flagged ones are preferred over the non-flagged
ones.
2018-08-10 04:19:13 +00:00
Aleksander Morgado
6b0424cfac plugins: consolidate ID_MM_PORT_TYPE_AT_* flag names
We define 3 common udev tag ids to be used by all plugins:

 * ID_MM_PORT_TYPE_AT_PRIMARY: the primary modem port. It will be used
   for AT control and also as PPP if there is no other port flagged
   explicitly to do PPP.

 * ID_MM_PORT_TYPE_AT_SECONDARY: the secondary modem port. It will be
   used when/if the primary port gets connected to do PPP.

 * ID_MM_PORT_TYPE_PPP: the port to be used to do PPP only. This tag
   makes sense only when the primary port shouldn't be used for PPP,
   i.e. when there is a port dedicated to do PPP and one port
   dedicated for control.
2018-08-10 04:19:13 +00:00
Aleksander Morgado
86f840d97b port-probe: explicitly report GPS port type if port flagged
And remove all custom logic from all plugins that were doing just that.
2018-08-10 04:19:13 +00:00
Aleksander Morgado
85adbdbdd1 plugins: consolidate ID_MM_PORT_TYPE_GPS flag name
Use the same flag name across all plugins with support for
NMEA-capable TTYs.
2018-08-10 04:19:13 +00:00
Lubomir Rintel
b39dd2ec05 all: drop unused variables
Keeps build with GCC 8 happy.

mm-base-call.c:758:18: warning: variable 'response' set but not used [-Wunused-but-set-variable]
mm-base-call.c:822:18: warning: variable 'response' set but not used [-Wunused-but-set-variable]
mm-base-sms.c:908:18: warning: variable 'response' set but not used [-Wunused-but-set-variable]
mm-sms-list.c:331:25: warning: variable 'ctx' set but not used [-Wunused-but-set-variable]
mm-iface-modem-messaging.c:1210:21: warning: variable 'storage_ctx' set but not used [-Wunused-but-set-variable]
huawei/mm-plugin-huawei.c:183:18: warning: variable 'response' set but not used [-Wunused-but-set-variable]
ublox/mm-plugin-ublox.c:161:24: warning: variable 'response' set but not used [-Wunused-but-set-variable]
ublox/mm-plugin-ublox.c:159:24: warning: variable 'ctx' set but not used [-Wunused-but-set-variable]
icera/mm-modem-helpers-icera.c:218:25: warning: variable 'first_free' set but not used [-Wunused-but-set-variable]
novatel/mm-common-novatel.c:50:18: warning: variable 'response' set but not used [-Wunused-but-set-variable]
2018-04-24 18:11:15 +02:00
Ben Chan
7880a35b19 huawei: port huawei_custom_init to use GTask 2017-09-08 17:45:29 +02:00
Aleksander Morgado
00fb9e98f6 kernel-device: device-specific properties in either port or physdev
There are 2 main types of udev properties: device-specific and
port-specific.

The port-specific properties are set independently per port (e.g. port
type hints set per interface number for a given vid:pid).

The device-specific properties apply to all ports in the device. Some
of these properties are currently expected in the physical device
(e.g. ID_MM_PLATFORM_DRIVER_PROBE) while some others are expected in
each port (e.g. the plugin udev tag filters).

This patch tries to simplify the logic and just assume that the device
specific tags may be given in either the physical device or the port
device, by providing separate APIs to retrieve port-specific or
device-specific (global) properties. If the same tag is given in both
the device and the port, the one in the device takes preference.

For the generic backend, these new APIs are really useless, as all
device-specific and port-specific properties are always stored in the
port object themselves (there is no 'tree' of devices in the generic
backend, no 'physdev' device).

For the udev backend, though, there really is a difference, as the
tags may be set in port or device.

https://bugs.freedesktop.org/show_bug.cgi?id=100156
2017-03-22 09:40:10 +01:00
Aleksander Morgado
820ab01ddf kernel-device: ID_USB_INTERFACE_NUM should be read as an hex string
The original g_udev_device_get_property_as_int() uses strtol() without
an explicit base (i.e. 0) so that the base is autodetected from the
string whenever possible (e.g. if prefixes with '0x' it is treated as a
hexadecimal string).

But, for ID_USB_INTERFACE_NUM, we explicitly require reading the number
as an hex string, even if we don't have any '0x' prefix.

Reported-by: Matthew Stanger <stangerm2@gmail.com>
2016-11-07 19:41:05 +01:00
Aleksander Morgado
ae9ede926a core: use the kernel device object in the port object and the plugin interface
The mm_base_modem_grab_port() now receives a MMKernelDevice directly from the
plugin, which is then stored in the MMPort corresponding to the port.

This means that we have direct access to e.g. all properties set by udev rules
everywhere, and we don't need additional GUdevClient objects (e.g. like the one
used in the Huawei plugin to detect NDISDUP support during runtime).

For virtual ports (e.g. generated during unit tests), we have a new 'generic'
kernel device object which just provides the values from the kernel device
properties given during its creation.
2016-09-29 15:43:05 +02:00
Aleksander Morgado
aa4577dfb9 core: new kernel device object instead of an explicit GUdevDevice
Instead of relying constantly on GUdevDevice objects reported by GUdev, we now
use a new generic object (MMKernelDevice) for which we provide an initial GUdev
based backend.
2016-09-29 15:43:05 +02:00
Aleksander Morgado
1f813c4e96 core: allow identifying devices by a user-provided 'uid'
All ports of the same modem reported by the kernel will all be associated with
a common 'uid' (unique id), which uniquely identifies the physical device. This
logic was already in place, what we do now is avoid calling it  the 'sysfs
path' of the physical device, because we may not want to use that to identify
a device.

This logic now also enables the possibility of "naming" the modems in a unique
way by setting the "ID_MM_PHYSDEV_UID" property in the "usb_device" that owns
all the ports.

E.g. a custom device has 4 modems in 4 different USB ports. The device path of
each USB device will always be the same, so the naming rules could go like this:

    $ vim /usr/lib/udev/rules.d/78-mm-naming.rules

    ACTION!="add|change|move", GOTO="mm_naming_rules_end"
    DEVPATH=="/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.5/4-1.5.1", ENV{ID_MM_PHYSDEV_UID}="USB-MODEM-1"
    DEVPATH=="/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.5/4-1.5.2", ENV{ID_MM_PHYSDEV_UID}="USB-MODEM-2"
    DEVPATH=="/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.5/4-1.5.3", ENV{ID_MM_PHYSDEV_UID}="USB-MODEM-3"
    DEVPATH=="/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.5/4-1.5.4", ENV{ID_MM_PHYSDEV_UID}="USB-MODEM-4"
    LABEL="mm_naming_rules_end"

Each of the modems found will have a unique UID retrieved from the previous list
of rules. Then, "mmcli" has also been updated to allow using the UID instead of
the modem DBus path or index, e.g.:

    $ sudo mmcli -m USB-MODEM-1
    /org/freedesktop/ModemManager1/Modem/0 (device id '988d83252c0598f670c2d69d5f41e077204a92fd')
      -------------------------
      Hardware |   manufacturer: 'ZTE CORPORATION'
               |          model: 'MF637'
               |       revision: 'BD_W7P673A3F3V1.0.0B04'
               |      supported: 'gsm-umts'
               |        current: 'gsm-umts'
               |   equipment id: '356516027657837'
      -------------------------
      System   |         device: 'USB-MODEM-1'
               |        drivers: 'option'
               |         plugin: 'ZTE'
               |   primary port: 'ttyUSB5'
               |          ports: 'ttyUSB5 (at)'
    ...

    $ sudo mmcli -m USB-MODEM-1 --enable
    ...
2016-09-29 15:41:21 +02:00
Ting-Yuan Huang
969189d42c plugin-manager: protect mm_plugin_{major,minor}_version
This patch makes declarations bind to definitions within the same module
to prevent the potential ambiguity if referenced directly.

AddressSanitizer think they violated one definition rule, although
those symbols are accessed by address through their modules and do
not depend on the order of the libararies loaded.
2016-05-28 13:59:54 +02:00
Aleksander Morgado
ffde429843 core: use G_SOURCE_REMOVE and G_SOURCE_CONTINUE in GSourceFuncs 2015-12-02 17:07:39 +01:00
Aleksander Morgado
71a1b64b3b huawei: expect 'modem' and 'pcui' in ^GETPORTMODE responses
Newer huawei modems, like the E3372, use the following ^GETPORTMODE response
format:
  ^GETPORTMODE: TYPE: WCDMA: ,pcui:1,modem:2,ncm:3,mass:4,mass_two:5,

This patch updates the parser that looks for the control TTY (pcui) and data TTY
(modem).

https://bugs.freedesktop.org/show_bug.cgi?id=86658
2014-12-03 19:02:00 +01:00
David McCullough
d73b633639 huawei: GPS support for MU609/MU909
Implement GPS support on the MU609 and MU090 Huawei modules.
Its highly likely the commands are the same for other Huawei modems
and it just needs to be activated via udev rules that flag the GPS port
with ID_MM_HUAWEI_GPS_PORT=1.

There are a lot of options that can be tweaked on the Huawei GPS setup,
this code just chooses a simple default for unassisted, standalone GPS
operation.

Signed-off-by: David McCullough <david.mccullough@accelecon.com>
2014-07-03 16:01:02 +02:00
David McCullough
83c8db8819 huawei: avoid AT^GETPORTMODE in Huawei MU609
The MU609 modems from Huawei have a bug (confirmed by Huawei) that causes
the modem to reset if AT^GETPORTMODE is issued.

I have provided and example udev rule I use to disable this command as a
patch,  feel free to drop that if its not acceptable.  Since I cannot tell
the modem type from within the udev rules this is less specific than my
previous code based patch,  but much simpler ;-)

I have two modems that share the same USB ID,  however,  neither supports the
^GETPORTMODE command (and one of them crashes when it is issued).  Perhaps
someone with a Huawei that supports ^GETPORTMODE can check their USB ID's
and see if they clash.

Here is a comment from the Huawei devs:
> We confirmed this is a issue. This is Qualcomm baseband command at Data
> Card. We didn’t delete and block it. We will fix this issue in next FW.
> Thank you very much.

Sign-off-by: David McCullough <david.mccullough@accelecon.com>
2014-07-01 11:08:47 +02:00
Aleksander Morgado
7c347aa3ec port: store parent sysfs path in each MMPort 2014-06-23 18:12:27 +02:00
Aleksander Morgado
7752c9920d huawei: flag /dev/cdc-wdm as primary if no primary found already 2014-06-23 18:12:27 +02:00
Ben Chan
1bd939d4b8 huawei: fix a debug message
This patch simply fixes the following debug message:

from:
  <debug> (Huawei) couldn't turn off unsolicited messages insecondary ports: 'Unknown error'

to:
  <debug> (Huawei) couldn't turn off unsolicited messages in secondary ports: 'Unknown error'
2014-02-19 18:49:30 -06:00
Aleksander Morgado
d4dfd661b9 port-serial-at: use GIO Async API like methods 2014-02-13 13:40:21 +01:00
Aleksander Morgado
0c86840dde ports: rename 'libserial' to 'libport' 2014-02-13 13:40:11 +01:00
Aleksander Morgado
6f235b9948 ports: rename 'MMAtSerialPort' to 'MMPortSerialAt' 2014-02-13 13:40:01 +01:00
Aleksander Morgado
e9523a6abd huawei: clear only once the timeout to wait for the first interface
As soon as we get a match between the current interface being probed, and the
first expected interface to probe, clear the timeout. But this doesn't mean that
this interface being probed will be the correct one, so it may be the case that
we end up expecting a new first interface and probing another one.

With an example probably seen better...

Modem appears with interfaces 2, 3 and 4.

1. We first try to look for interface 0, which is not in the set:
  1.1. Probing interfaces 2, 3 and 4 get deferred.

2. First-interface timeout happens because interface 0 doesn't appear, so we
switch to wait for interface 1:
  2.1 Probing interfaces 2, 3 and 4 get deferred.

3. First-interface timeout happens because interface 1 doesn't appear, so we
switch to wait for interface 2:
  3.1. We get a match on interface 2, which exists. We now remove the
       first-interface timeout and start running the init sequence there.
  3.2. Probing interfaces 3 and 4 get deferred.

4. Init sequence in interface 2 fails, because it is not an AT port, so we
switch to wait for interface 3:
  3.1. We get a match on interface 3, which exists. We do *not* need to remove
now the first-interface timeout because this interface we are testing is
actually the second one which we tried.

So, just check whether the timeout exists or not, and if it exists remove it.
Yeah, this commit just fixes a warning at the end.
2013-10-30 20:18:11 +01:00
Aleksander Morgado
cebe828f7f huawei: only expect custom inits to be run on tty ports 2013-04-25 10:34:19 +02:00
Aleksander Morgado
2e4a83628a huawei: allow MBIM devices 2013-04-17 15:19:38 +02:00
Franko Fang
01400024cd huawei: add port type rules for modems 2013-04-09 18:41:15 +02:00
Aleksander Morgado
a7b8cbb71d port-probe: don't reschedule next probing step when serial port buffer full
When the serial port buffer gets full of non-AT garbage during port probing,
we were re-scheduling the next probing step, which is completely wrong, as we
then would be processing the same probing task twice. If we get a buffer full,
just cancel the AT probing cancellable, which would cancel not only the possible
AT probings, but also the custom init if there is any.

Also, make sure that the custom_init() of the plugins out there don't return an
error if the GCancellable is cancelled. Cancelling the GCancellable means we
should just stop the custom_init(), and actually sending an error in
custom_init() means that the port should be set as unsupported by the plugin, so
completely different things.

Should fix https://bugzilla.gnome.org/show_bug.cgi?id=696695
2013-03-29 12:33:20 +01:00
Aleksander Morgado
d6ac6508d9 plugin: explicitly request QMI probing
Plugins which may support QMI ports need to explicitly request QMI probing
in cdc-wdm devices. This should also avoid probing cdc-wdm ports when we know
that the plugin doesn't support them (e.g. with Ericsson MBM devices).

https://bugzilla.gnome.org/show_bug.cgi?id=696701
2013-03-28 17:33:08 +01:00
Aleksander Morgado
9a07688524 huawei: check with next port if the first one is not AT 2013-01-11 16:13:55 +01:00
Aleksander Morgado
c2db8abe52 huawei: better detection of data port on some modems
Some devices (e173) appear to lie about NDIS support; GETPORTMODE reports NDIS
is enabled, but that port is actually the MDM port and responds to AT commands.
So, if we get a port reported as NDIS and none reported as MDM, use the one
reported as NDIS for PPP.

https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/1057186
2012-11-12 09:49:48 +01:00
Aleksander Morgado
c250fa3797 libmm-glib: remove the `libmm-common.h' header
Both the ModemManager daemon and the mmcli will now include `libmm-glib.h' only.

We also handle two new special `_LIBMM_INSIDE_MM' and `LIBMM_INSIDE_MMCLI'
symbols, which if included before the `libmm-glib.h' library allow us to:

 * Don't include the libmm-glib high level API in the ModemManager daemon, as
   the object names would clash with those in the core.

 * Define some of the methods of helper objects to be included only if compiling
   ModemManager daemon or the mmcli.
2012-10-04 10:17:12 +02:00
Aleksander Morgado
6995300ecd huawei: if port replies to AT^GETPORTMODE, port is AT
Just skips the additional check for AT support in the port.
2012-09-19 10:37:31 +02:00
Aleksander Morgado
4804c37604 build: new `--without-qmi' configure option
For those who don't care about the QMI support through libqmi-glib, or if you're
stuck with glib 2.30 (libqmi-glib requires 2.32), this configure switch allows
disabling the QMI support completely.

The logic to detect cdc-wdm ports is still in place, but the QMI probing is
never launched at them. Also, all QMI-related objects won't be compiled.
2012-09-05 20:02:31 +02:00
Aleksander Morgado
35a69d6b8e huawei: enable QMI-powered Huawei modems 2012-08-30 14:18:03 +02:00
Aleksander Morgado
0436b3e457 api,introspection: report list of drivers, not just one
Different ports of the same modem may get handled by different drivers. We
therefore need to provide a list of drivers (new `Modem.Drivers' property with
signature 'as') instead of just one (removed `Modem.Driver' property with
signature 's').

$ sudo mmcli -m 0 | grep drivers
           |        drivers: 'qcserial, qmi_wwan'
2012-08-24 13:34:51 +02:00
Aleksander Morgado
d9ea4a304c at-serial-port: allow sending 'raw' commands
Commands treated as 'raw' won't get the 'AT' prefix and will also not get the
trailing carriage return.
2012-08-24 12:32:28 +02:00
Aleksander Morgado
5b2c839dd9 huawei: cache port mode results in the parent `MMDevice'
This lets us skip the search for the `MMPortProbe' where we got the results.
2012-08-06 20:07:23 +02:00