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subsurface/Documentation/user-manual.txt
Dirk Hohndel 65aba97c55 Documentation: apparently dive computer are two words 
We use "divecomputer" in many places and while that is a data structure in
Subsurface it apparently is not a word.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2013-02-17 20:55:27 -08:00

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Subsurface 3.0 User Manual
==========================
Jacco_van_Koll,_Dirk_Hohndel_and_Reinout_Hoornweg
v3.0.0, February 2013
:Author Initials: JKO & DH & RH
:toc:
:icons:
:numbered:
:website: http://subsurface.hohndel.org
Scope of this document is the usage of the program.
Please read the build manual for instructions how to build the
software and (if needed) its dependencies.
Audience: Fun Divers, Tec Divers, Professional Divers
[[S_Introduction]]
Introduction:
-------------
Subsurface is an open source divelog program that runs on Windows, Mac
and Linux. It was started because of a lack of viable divelog
software on Linux. It then turned out that the resulting software was
fairly easily ported to Windows and Mac and today great effort is put
into making it a viable application on all three platforms.
The program is under active development and at version 3.0 it compares
favorably to many other programs in this market.
While the list of supported dive computers is very long, in this
manual the Suunto Vyper will be used for all examples.
[[S_Requirements]]
Requirements
------------
Before you are able to import information from your dive computer into
Subsurface, you need some preparation. Do you have the following:
1. Your Dive Computer - compatible with libdivecomputer (see list in <<AppendixA,Appendix A>>)
2. Communication interface - usually that means a cable to connect your dive computer to your PC/Laptop/Netbook; some dive computers use IRDA or Bluetooth as well
3. Working installation of Subsurface
4. If needed, the manual of your dive computer
Alternatively you can import your divelogs from a couple of other
divelog applications (JDivelog, MacDive, Suunto Dive Manager). However,
native download from dive computer directly to Subsurface is
recommended.
[[S_StartUsing]]
Start using the program
-----------------------
When you start the program for the first time, it shows no information
at all. This is because the program doesn't have any information available.
If you have used the program before and saved the data, the program will
automatically load the already available divelog files.
There is a menu, containing 'File', 'Log', 'Filter', 'Planner' and 'Help'.
The screen is divided in 3 area's:
- Area with 4 tabs: Dive Notes, Equipment, Dive Info, and Stats
- Area next to the 4 tabs which will contain the dive profile
- Area with the dives (usually called dive list) which can be sorted by number, date, etc.
[[S_ImportNewDives]]
Import new dives from your dive computer
---------------------------------------
Before you start fiddling around with your dive computer, note that
there are dive computers that consume more power when they are in the
PC-Communication mode. This could drain your battery. Therefor, ensure
if your computer is recharging when connecting to the USB port. The
Suunto Viper does not recharge trough the USB connection. Please
consult the manual of your dive computer if you are unsure if it will
be recharged when connected to the USB port.
Now it is time to hook up your dive computer to your PC:
- Make sure that your OS has the required drivers installed
* On Linux this means you need to have the correct kernel
module loaded. Most distributions will do this automatically
for you.
* On Windows, the OS should offer to download the correct
driver when you connect your dive computer to the USB port.
* On a Mac you at times have to manually hunt for the correct
driver. For example the correct driver for the Mares Puck
devices can be found as Mac_OSX_VCP_Driver.zip at
http://www.silabs.com/support/pages/support.aspx?ProductFamily=USB+Bridges
(see further hints in <<AppendixB,Appendix B>>)
- Connect your interface cable to a free USB port
- Put your dive computer into PC Communication mode. (For 'Suunto Viper', press Mode - 1 Memory - 3 TR-PC)
(You should consult the manual of your specific dive computer for your brand and type)
- Go in Subsurface to 'Log - Download From Dive Computer'
* Using the two drop down lists, choose your vendor and product. Here we choose 'Suunto' and 'Vyper'.
* Select the device name under which your interface is connected from the drop down list.
* Click the 'OK' button.
- Now watch how your data is retrieved from your dive computer!
Depending on your type of computer and/or number of dives, this
could take some time. Please be patient.
[[S_ImportUemis]]
Import new dives from a Uemis Zurich
------------------------------------
Things are very similar when downloading dives from a Uemis Zurich
dive computer (which certainly is one of the ones that DO recharge when
connected to the USB port). The main difference is that you don't enter a
device name, but instead the location where the UEMISSDA file system is
mounted once you connect the dive computer.
On Windows this is a drive letter (often 'E:' or 'F:'), on a Mac this is
'/Volumes/UEMISSDA' and on Linux systems this differs depending on the
distribution that you use. On Fedora it usually is
'/var/run/media/<your_username>/UEMISSDA'. In all cases Subsurface
should suggest the correct location in the drop down list.
So once you have selected this as device name you can download the
dives from the Uemis Zurich. One technical issue with the Uemis Zurich
download implementation (this is a firmware limitation, not a
Subsurface issue) is that you cannot download more than about 40-50
dives without running out of memory on the SDA. This will usually only
happen the very first time you download dives from the Uemis Zurich -
normally when downloading at the end of a day or even after a dive
trip, the capacity is sufficient. If Subsurface displays and error
that the dive computer ran out of space the solution is straight
forward. Disconnect the SDA, turn it off and on again, and reconnect
it. You can now retry (or start a new download session) and the
download will continue where it stopped the last time you tried. You
may have to do this more than once, depending on how many dives you
have stored on your dive computer.
At this point Subsurface downloads most of the information that is
stored on the SDA, including information about dive spots and
equipment. Buddy information is not yet downloaded.
[[S_ViewingLogs]]
Viewing and completing your logs
--------------------------------
When all data from your dive computer is transferred, you will see a
listing of your dives in Area 3.
An example:
On Sunday Oct 23, 2011 you made a dive.
In the log line of this dive, you see the following information:
[width="70%",cols="<5%,10%,<20%,<65%",grid="none",frame="none",style="monospaced"]
|===============================================================================
|| # | 12 | Dive number
|| Date | Sun, Oct 23, 2011 10:50 | Date and time of your dive
|| * | | Your rating (none at this time)
|| m | 12.8 | Your maximum depth in meters
|| min | 31:20 | Your dive-time in minutes and seconds
|| Deg. C | 13.0 | Lowest water temperature during your dive
|| kg | | Weight carried (none at this time)
|| Suit | | Exposure protection suit worn (none at this time)
|| Cyl | | Your used cylinder (none at this time)
|| O2% | air | What type of mixture
|| SAC | | SAC (none at this time)
|| Location | | Where you performed your dive (empty)
|===============================================================================
As you can see, some information is already there because it is
retrieved from your dive computer. Some information is waiting for
you to be added. By double clicking on this dive, you can view and
complete the log.
The different types of information shown in this list may differ depending on the settings. More
about that in <<S_SettingUpPreferences,Setting up preferences>>.
[[S_EditDiveInfo]]
Edit the dive info
------------------
When you double click on the divelog line, the editor window
opens. Now you can add information that is missing. Let start with
completing the example:
You double clicked on dive #12, as described in <<S_ViewingLogs,Viewing and
completing your logs>>. The Dive Info window pops up and you will see
the following:
[horizontal]
*Location*:: An input where you can enter your new location, or you can choose with the pull-down previous locations
*GPS (WGS84 or GPS format)*:: An input where your can enter geographic coordinates of the dive site
*Pick on map*:: A button you can click on to display an interactive map on which you can select the location of the dive site
*Dive Master*:: An input where you can enter the name of your Dive Master, or you can choose with the pull-down a previous name
*Buddy*:: An input where you can enter the name of you Buddy, or you can choose with the pull-down a previous name
*Rating*:: A pull-down where you can rate your dive
*Suit*:: An input where you can track the exposure protection suit you were wearing
*Visibility*:: A pulldown where you can rate the visibility underwater
*Air Temp in deg. C*:: An input where you can enter the air temperature
*Notes*:: A free input where you can enter information about your dive. What you've seen, etc.
In this example we use the following information:
[horizontal]
*Location*:: Oostvoornse Meer
*Dive Master*:: S. de Vries
*Buddy*:: S. de Vries
*Rating*:: 3 stars
*Suit*:: 7mm wet
*Notes*:: First dive here. Good visibility. Did see the concrete poles, some crab and fish. Very nice and easy dive. +
Made movie with headcam.
Now don't press OK yet!
[[S_EditEquipmentInfo]]
Edit equipment info
-------------------
You also want to edit your Cylinder information. And in the
<<S_EditDiveInfo, previous chapter>>, this was not edited. There is
still another item to edit in the Dive Info screen:
- Cylinder: A double-click field set. Here you can edit your Cylinder information
So, when you double click on the cylinder info, you get another
pop-up. This pop-up gives you the following:
- Cylinder: Pull-down where you can choose your Cylinder, or add your own
- Size: The volume if not `filled'
- Pressure: The maximum pressure of this Cylinder
- Optional:
* Start Pressure: What was the pressure starting the dive
* End Pressure: What was the pressure ending the dive
* Gasmix: What was the percentage O2 and He of the blend
Now we are going to enter the data:
- Cylinder: 15.0 l
- Size: 15.0
- Pressure: 220
Now tick the option for Start & End pressure
- Start Pressure: 180
- End Pressure: 60
- Press OK
In very much the same way you can enter the weight you were carrying on
the dive. Subsurface tracks the following:
- Type: Specific type of weight system, like weight belt, integrated pockets
- Weight: Amount of weight (by default in kg, but can be switched to use lbs)
Enter the following data:
- Type: Integrated
- weight: 13kg
- Press OK
Now your dive information for this dive is complete. You can now press
OK in the Dive Info screen and view the results.
[[S_AddingEquipment]]
Adding equipment info
---------------------
In Area with the 3 tabs there is the tab Equipment. With this tab, you
can add Cylinders and Weight Systems (just like in the previous dialog).
We are going to add an additional Cylinder:
- In the main screen, click on the Equipment tab. This shows your
Cylinder you added in 7.
- Now press the Add button and the Cylinder pop-up comes back.
- Just like you added your Cylinder information in 7. Edit equipment
info, you add your cylinder information for the second Cylinder.
Fill in all the information about this Cylinder and press OK.
[[S_ViewInfoStats]]
View info & Stats
-----------------
After adding all the information, you can use the tab Dive Info and
the Stats tab. These tabs will provide you with all the (statistical and
calculated) information regarding your dive.
The information contains:
- Dive Info:
** Date: Date and time of your dive
** Dive Time: Duration of your dive
** Surf Intv: Interval between previous dive and this dive
** Max Depth: Maximum depth of this dive
** Avg Depth: The average depth of this dive
** Visibility: The visibility under water
** Water Temp: Lowest temperature of the water
** Air Temp: The temperature of the air at the surface
** Air Press: The air pressure at the surface
** SAC: The amount of Surface Air Consumption liters per minute
** OTU: The Oxygen Toxicity Units of this dive
** O2/He: Amount of Oxygen/Helium
** Gas Used: The total volume of gas used during this dive
- Statistics:
** Dives: Number of dives covered (usually one, unless you select more dives)
** Max/Min/Avg Temp: Corresponding temperature of the dives covered
** Total time: Total time of the covered dives together, calculated
** Avg/Long/Short Time: The average / longest / shortest dive time of the covered dives, calculated
** Max/Min/Avg Depth: The maximum / minimum / average depth of the covered dives
** Max/Min/Avg SAC: Highest / lowest / average Surface Air Consumption of your covered dives
[[S_SettingUpPreferences]]
Setting up preferences
----------------------
Subsurface has the ability to modify the preferences you want. By
using menu 'File - Preferences' you will be presented a pop-up. The pop-up
has two tabs: 'General Settings' and 'Tec Settings'.
The General Settings allow you to select units, columns to be shown, the
font used for the divelist and the default file that contains the data.
The Tec Settings offer extra columns to show, settings for more graphs and
information to be shown in the dive profile and settings for GFlow and
GFhigh.
In General Settings you are free to choose what your preference are for the
units to be displayed, with other words, use Metric or Imperial.
You can set the following options with 'Units':
- Depth: Your diving depth in Meters or Feet
- Pressure: The pressure of your tank(s) in Bar/Ato or PSI (Pressure Square Inch)
- Volume: The volume of your tank(s) in Liter or CuFt (Cubic Feet) (At sea-level pressure)
- Temperature: The temperature of the water in Celsius or Fahrenheit
- Weight: The weight of your weight system in kg or lbs
In the main screen, you did see in Area 3, some information. With the
'Show Columns', you can enable/disable options you would like to show
there:
- Show Temp: Shows the temperature of your dive
- Show Cyl: Shows the cylinder(s) of your dive
- Show O2%: Shows the O2% of your dive
- Show SAC: Shows the SAC of your dive (Surface Air Consumption)
- Show Weight: Shows the total weight carried
- Show Suit: Shows the suit you were wearing
With 'Divelist Font', you can change the font used in the dive list,
And you can use 'Default XML Data File' to specify which file contains the
data the program will use by default.
The other tab holds the 'Tec Settings'
You can select more columns to be shows with 'Show Columns':
- OTU The number of Oxygen Toxicity Units
- maxCNS The maximum Central Nervous System oxygen toxicity
The 'Profile Setting' allow you to show extra information in the dive profile:
- Show pO2 graph Show a graph of the oxygen partial pressure (with a threshold, default 1.6)
- Show pN2 graph Show a graph of the nitrogen partial pressure (with a threshold, default 4.0)
- Show pHe graph Show a graph of the helium partial pressure (with a threshold, default 13.0)
- Show MOD Show the Maximum Operating Depth of the used gasmix (for the given max. ppO2, default 1.6)
- Show EAD, END, EADD Show Equivalent Air Depth (considering N2 and O2 narcotic), Equivalent Nitrogen Depth (considering just N2 narcotic) and Equivalent Air Density Depth
- Show dc reported ceiling in red Show the ceiling as reported by the dive computer
- Show calculated ceiling Show the ceiling as calculated by Subsurface
- 3m increments for calculated ceiling The calculated ceiling is not continuous, but increments in 3m steps
- GFlow Set the Low Gradient Factor (default 30)
- GFhigh Set the High Gradient Factor (default 75)
I will give an example here:
I am a diver in The Netherlands, using the Metric System. Therefor, I
go to the menu File, choose Preferences here. In the Units section, I
use the following:
- Depth: Meter
- Pressure: Bar
- Volume: Liter
- Temperature: Celsius
- Weight: kg
I would like to see the:
- Temperature
- Show Cyl
- Show O2%
- Show SAC
Clicking OK on the dialog stores these settings.
[[S_HowFindDeviceName]]
How to find the Device Name
---------------------------
When you connect your dive computer by using an USB connector, usually
Subsurface will propose a drop down list that contains the correct
device name (or mount point for the Uemis Zurich). In the rare cases
where this doesn't work here are some instructions on ways to find out
what your dive name is:
.On Linux:
- Disconnect your USB cable of your dive computer
- Open a terminal
- Type the command: 'dmesg' and press enter
- Plug in your USB cable of your dive computer
- Type the command: 'dmesg' and press enter
Within your terminal you should see a message similar to this one:
usb 2-1.1: new full speed USB device number 14 using ehci_hcd
usbcore: registered new interface driver usbserial
USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial Driver core
USB Serial support registered for FTDI USB Serial Device
ftdi_sio 2-1.1:1.0: FTDI USB Serial Device converter detected
usb 2-1.1: Detected FT232BM
usb 2-1.1: Number of endpoints 2
usb 2-1.1: Endpoint 1 MaxPacketSize 64
usb 2-1.1: Endpoint 2 MaxPacketSize 64
usb 2-1.1: Setting MaxPacketSize 64
usb 2-1.1: FTDI USB Serial Device converter now attached to ttyUSB3
usbcore: registered new interface driver ftdi_sio
ftdi_sio: v1.6.0:USB FTDI Serial Converters Driver
You see that in the third line from the bottom, the USB adapter is
detected and is connected to 'ttyUSB3'. Now you use this information in
the import settings as '/dev/ttyUSB3'. Your dive computer interface is
connected and you should be able to import your dives.
.On Windows:
Simply try COM1, COM2, etc. The drop down list should contain all connected COM devices.
.On MacOS:
The drop down box should find all connected dive computers.
[[S_ImportingAlienDiveLogs]]
Importing divelogs from other software
--------------------------------------
Subsurface will import divelogs from a couple of other log software. We
support currently XML exports from DivingLog as well as Suunto
DiveManager. Native format of JDivelog and MacDive are imported as well.
When importing dives subsurface tries to detect multiple records for
the same dive and merges the information as best as it can. So as long
as there are no time zone issues (or other reasons that would cause the
beginning time of the dives to be substantially different) subsurface
will not create duplicate entries.
[[S_ImportingDivesJDivelog]]
Importing dives from JDivelog
-----------------------------
Maybe you have been using JDivelog and you have a lot of dives logged in
this program. You don't have to type all information by hand into
Subsurface, because you can import your divelogs from JDivelog.
JDivelog stores its information into files with the extension of .jlb.
These .jlb contain all the information that has been stored, except your
images in xml format.
By using the menu 'File - Import XML File(s)' you get a popup asking
for the filename. To import your JDivelog file(s) do the following:
- Open 'File - Import XML Files(s)' on the menu
- Browse your directories to the location where your *.jlb file is
- Select your existing *.jlb file and click 'open'
- Click the OK button in the popup
After a few moments, you see your existing logs in Subsurface. Now you can
edit your dives like explained in <<S_EditDiveInfo, chapter 6>>.
Information that is imported from JDivelog into the location field:
- Extended dive location information
Information that is merged into the location or notes field:
- Used amount of weight
- Used type of suit
- Used type of gloves
- Type of dive
- Dive activity
Alternatively, you can start subsurface with the --import command line
which will have the same effect:
subsurface MyDives.xml --import JDivelogDives.jlb
will open your divelog (assuming that's called MyDives.xml) and then
import the dives from JdivelogDives.jlb. You can now save the combined
divelog back as MyDives.xml.
[[S_ImportingDivesSuunto]]
Importing dives from Suunto Divemanager 3.*
-------------------------------------------
Before you can start importing dives from Suunto Divemanager, you first
have to export the dives you want to import. Subsurface does not import
directly from the Suunto Divemanager log files. The following procedures
unpacking instructions for Linux and Windows.
Export from Suunto Divemanager
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Start Suunto Divemanager and login with the name containing the logs
- Do not start the import wizard to import dives from your computer.
- In the navigation tree on the left side of the program-window, select your dives.
- Within the list of dives, select the dives you would like to import later:
* To select certain dives: hold ctrl and point & click the dive
* To select all dives: Select the first dive, hold down shift and select the last dive
- With the dives marked, use the program menu 'File - Export'
- The export pop-up will show
- Within this pop-up, there is one field called Export Path.
* Click the button browse next to the field Export Path
** A file-manager like window pops up
** Navigate to the directory where you want to store the Divelog.SDE file
** Optional change the name of the file you want to save
** Click 'Save'
* You are back in the Export pop-up. Press the button 'Export'
- Your dives are now exported to the file Divelogs.SDE.
Reading Suunto Divemanager Export in Subsurface
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The file Divelogs.SDE can now be opened (or imported) in
Subsurface. Different from earlier versions of Subsurface, no manual
unpacking of the .SDE file is needed anymore.
[[S_ImportingMacDive]]
Importing dives from MacDive
----------------------------
Importing logs from MacDive is as easy as it gets. Do the following
steps in Subsurface:
- Open the following menu 'File - Import XML Files(s)'
- Browse your directories to the location where your MacDive logs are
stored
- Select the log file(s) you want to import and click 'open'
- Click the OK button in the popup
After a few moments, you see your existing logs in Subsurface. Now you can
edit your dives like explained in <<S_EditDiveInfo, chapter 6>>.
We currently attempt to import all the relevant dive information
excluding the used equipment and diver name.
It is also possible to do the importing from command line just like with
JDivelog (see <<S_ImportingDivesJDivelog>>):
subsurface MyDives.xml --import MacDiveDives.xml
[[S_Menu]]
The menu and sub-menus
----------------------
Within Subsurface, there are several menu and sub-menu options. All of
those will be described here with their function.
The file menu
~~~~~~~~~~~~~
The file menu is used for the following menu options:
- New:: Close your current divelog (saving if necessary) and start a new empty dive list
- Open:: Open your saved Subsurface xml file(s)
- Save:: Save your current divelogs or changes you made to your divelogs
- Save As:: Save your current divelogs or changes you made to your divelogs under a different name
- Close:: Close your current divelog, saving as necessary
- Import XML File(s):: Import your dives from files exported by other divelogs
- Print:: Print your current divelog profiles and information about the dive
- Preferences:: Set your preferences as described in <<S_SettingUpPreferences,chapter 10>>
- Quit:: Quit the program
The Log menu
~~~~~~~~~~~~
Within the Log menu, you will find the following sub-items:
- Download From Dive Computer:: Allows you to download dive information from your dive computer
- Download From Web Service:: Allows you to download dive information from the webservice
- Edit Device Names:: Allows you to add device nicknames to dive computers
- Add Dive:: Manually add a dive that you cannot download from an existing computer
- Renumber:: This option provides you with a pop-up. Within this
pop-up you can choose what the first number of your dives should be
for this set of dives.
- Autogroup:: Toggle the auto group setting (see the discussion in the <<S_SettingUpPreferences,chapter 10>>)
- Toggle Zoom:: The dive profile tries to convey some first glance information about
the depth of a dive - so the vertical scaling of the profile always
show a minimum of 30m / 90ft. This can be changed to be only 10m / 30ft.
- Yearly Statistics:: Contrary to the Statistics in the main display, these are purely calendar based
- Dives Locations:: Show an interactive map with locations of the logged dives with GPS coordinates
- View:: This is a submenu containing:
* List:: Show only the list of dives you have made
* Profile:: Show only the dive profile of the selected dive
* Info:: Show only the 3 tab information screen
* Three:: Show the 'default' 3 screen setup
* Prev DC Switch to the previous dive computer
* Next DC Switch to the next dive computer
The Filter menu
~~~~~~~~~~~~~~~
This menu gives you the choice to enable or disable Events for the
selected divelog(s). At this time, you can enable or disable ascent.
When you enable ascent for your dives, within the dive profile, a yellow
marker with exclamation sign (!) will show on the points where you have
ascended.
The Help menu
~~~~~~~~~~~~~
The Help menu shows only the About, which contains the version and author
information and License button.
[[AppendixA]]
Appendix A: Supported Dive Computers
------------------------------------
The use of libdivecomputer provides the support for dive computers.
Within the 'File - import' dialog box you will see a list of
dive computer vendors and respective products. This list is covering a
compatible set. Please check your users manual to check if your
computer will be supported.
Supported dive computers::
Atomics Aquatics:::
* Cobalt
Cressi / Zeagle / Mares:::
* Edy, Nemo Sport
* N2iTiON3
Mares:::
* Nemo, Nemo Excel, Nemo Apneist, ...
* Puck, Puck Air, Nemo Air, Nemo Wide, ...
* Darwin, Darwin Air, M1, M2, Airlab
* Icon HD, Icon HD Net Ready, Nemo Wide 2
Oceanic / Aeris / Sherwood / Hollis / Genesis / Tusa (Pelagic):::
* VT Pro, Versa Pro, Pro Plus 2, Wisdom, Atmos 2, Atmos AI, Atmos Elite, ...
* Veo 250, Veo 180Nx, XR2, React Pro, DG02, Insight, ...
* Atom 2.0, VT3, Datamask, Geo, Geo 2.0, Veo 2.0, Veo 3.0, Pro Plus 2.1, Compumask, Elite T3, Epic, Manta, IQ-900 (Zen), IQ-950 (Zen Air), IQ-750 (Element II), ...
Heinrichs Weikamp:::
* OSTC, OSTC Mk.2, OSTC 2N
* From
Reefnet:::
* Sensus
* Sensus Pro
* Sensus Ultra
Shearwater:::
* Predator, Petrel
Suunto:::
* Solution
* Eon, Solution Alpha and Solution Nitrox/Vario
* Vyper, Cobra, Vytec, Vytec DS, D3, Spyder, Gekko, Mosquito, Stinger, Zoop
* Vyper2, Cobra2, Cobra3, Vyper Air and HelO2
* D9, D6, D4, D9tx, D6i and D4i
Uemis:::
* Zurich
Uwatec:::
* Aladin
* Memo Mouse
* Smart, Galileo (infraread)
Zeagle:::
* N2iTiON 3
[[AppendixB]]
Appendix B: Mac OSX Driver Installation
---------------------------------------
Working out which driver to use for a Mac requires for a particular dive computer can
require some experimentation. The libdivecomputer website provides a useful point from
which to start: http://www.divesoftware.org/libdc/drivers.html. It lists a number of
sites for manufacturers of the serial to USB chips which provide the necessary conversions.
Here you have two alternatives. Either you try each of the major drivers in turn until
you find the right one, or you follow some further steps to try and identify the right
driver up front. To determine the required driver up front, first attach the usd to device
connector cable. Next open a terminal window and run the command:
system_profiler SPUSBDataType > usb.txt
you should end up with a file (usb.txt in this example) which contains the VID/PID information
which can then be used with the URL above to narrow the field. Just open the text file and
compare the information with the table in the drivers section of the web page. This should
point you to the relevant driver manufacturer. Typically, one then needs to navigate to the
relevant sub page for "drivers" and then the one for "VCP drivers." VCP stands for Virtual
Com Port. You want VCP rather than D2XX drivers, for example. Make sure to download the correct
version for your particular version of OS X.
These can be downloaded to the Mac and installed in the usual way. Details on how to
install on OS X 10.8 differ from earlier versions due to the new security functions.
Put simply, unless the driver has been digitally signed in an approved way OS X will
block the installation. You can either make some changes to your system security settings
or manually override the block. The latter seems more sensible and only involves
control-clicking the installation package and answering some standard dialogs. The sequence
goes like this:
- download the driver .dmg package to your downloads folder
- right click the downloads folder an navigate to the new dmg package
- control-click the package: a dialog will open stating that the package has not been signed
and is from an unknown developer and asking whether you really want to proceed
- if happy, you accept the dialog and the package opens and may show you one or more versions
- select the relevant version, click the package installer and that should be it.
You can find a high-level explanation of the new security features from apple here:
https://www.apple.com/osx/what-is/security.html.
Until you have the correct driver installed, subsurface will not connect to your dive
computer. If you try one VCP driver and it still doesn't work, try the next manufacturer
until it does. If you run out of drivers and still can't get things working perhaps
it is time to contact us via the subsurface mail lists.
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