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97 lines
3.2 KiB
97 lines
3.2 KiB
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KMOBILE
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(C) Copyright 2003, Helge Deller <deller@kde.org>
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"kmobile" is suite to easily access "Mobile Devices",
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which means, that you have one single interface to access
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any type of mobile device (e.g. cellular phone, PDAs,
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MP3-Players, Digital Cameras and a lot more).
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Each of this devices have different types of information,
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(capatibilities) which can be:
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- An addressbook
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- A collection of notes
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- calendar entries,
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- a file storage section (e.g. pictures in digital cameras)
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- and more
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The whole interface is pretty extendable. Each device has
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a device driver, which reports the capatibilities of the
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connected device to the higher level.
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So, if you once write a device driver, you can access it's
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contents from any KDE application later.
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Currently the whole interface is divided into 3 sections:
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a) The low-level device driver
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b) A mid-layer, which is realized in the "kmobile" application
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c) A userland library, to which KDE applications should link.
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Here is some background info:
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a) The low-level device driver (libkmobile_xxxx.so)
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The low-level driver has to be derived from the KMobileDevice class
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(#include <kmobiledevice.h>). The drivers should be located below the
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directory /device, and you can find a sample implementation in
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/device/skeleton-directory. See below for some hints on how to
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write such a device driver.
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b) The mid-layer (kmobile)
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The mid-layer handles the main functionality, which is entirely
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implemented in the kmobile application. All low-level drivers
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are loaded by kmobile only, and then all low-level functions
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to any device is made available to other applications
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with a DCOP interface. Normal KDE applications should prefer the
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userland library (see below) instead of using direct DCOP calls.
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Nevertheless, the DCOP interface might be very interesting to write
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standalone command line tools.
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c) The userland library (libkmobileclient.so)
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Any KDE application which wants to access mobile devices
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should #include <kmobileclient.h> and link to the libkmobileclient.la
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library. libkmobileclient translates all calls to DCOP calls and
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makes accessing mobile devices completely transparent to the
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application.
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One sample program which uses the client library is the kmobile
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kioslave. In Konqueror you might access any mobile device directly
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by giving "mobile:/" as the URL.
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HINTS FOR DRIVER DEVELOPERS:
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----------------------------
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- KMobile device drivers are very similiar to kioslaves. Refer
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at the kioslave documentation if needed.
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- derive your driver only from the KMobileDevice class (#include <kmobiledevice.h>)
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and reimplement the functions which you really need
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- remember to set the classtype and capatibilities as soon as possible
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- your driver will be loaded only once in the whole KDE system
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- you don't need to worry about syncronisation - KMobile syncronizes
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all calls to your driver, so you always will have a clean state
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- use lockDevice("/dev/ttyS1") and unlockDevice("/dev/ttyS1") to
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lock those devices system-wide (creates /var/lock/LCK..<devname> files),
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and to prevent other applications to access the same physical ports/devices
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- use the helper functions createDirEntry() and createFileEntry() to
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create the right UDSEntries for listEntries(), stat(), ...
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- never fork() your driver !!
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