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---------------------------------------------------------------------
GraphLCD driver library
The AX 206 digital photoframe driver
---------------------------------------------------------------------
Description
-----------
The ax206dpf driver supports AX 206 based DPFs.
For more information about these DPFs see:
http://tech.section5.ch/news/?p=68
The driver was tested with this display:
http://www.pearl.de/a-PX1184-5618.shtml or http://www.pearl.de/a-HPM1184-5618.shtml
Important Notes
---------------
This driver is experimental and not enabled by default.
To use this driver uncomment the HAVE_AX206DPF_EXPERIMENTAL line in
Make.config and recompile the library.
The DPF does not work out of the box with this driver.
It has to be modified with a custom firmware (see "Hacking your DPF").
If your DPF is already hacked, there is no need to install the "dpf-ax" package
described in "Hacking your DPF". All necessary routines to access a hacked
DPF are included in this driver.
Non-root users
--------------
The driver needs write access to /dev/proc/usb. So the calling user
must be root or you have to modify the access rights for /dev/proc/usb.
For Debian/Ubuntu this can be done with a custom udev rule like:
SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", MODE="0664", GROUP="<user_group>"
Replace <user_group> with a group the calling user belongs to.
Put this rule in a new file "nn-usbuser.rules" in /etc/udev/rules.d.
Replace "nn" by two digits that are lower than any existing usb rule.
For my Ubuntu 10.04 system I used "/etc/udev/rules.d/35-usbuser.rules".
Configuration Parameters
------------------------
The driver supports the following parameters in config file:
Device
Selects a specific display.
'dpf0' = first detected display, 'dpf1' = second detected display, ...
Default value: 'dpf0'
Width
Sets the horizontal size of the display. If this parameter is not
given, a default value according to the selected DPF is used.
Default value: 320 or 240 (see 'Portrait')
Height
Sets the vertical size of the display. If this parameter is not
given, a default value according to the selected DPF is used.
Default value: 240 or 320 (see 'Portrait')
UpsideDown
Rotates the display output by 180 degrees. This might be useful, if
the LCD is mounted upside-down.
Possible values: 'yes', 'no'
Default value: 'no'
Portrait
Select portrait or landscape mode.
Rotate display output by 90 degrees if necessary.
Possible values: 'yes' -> default size = 240 x 320
'no' -> default size = 320 x 240
Default value: 'no'
Zoom
Determines if pixels should be magnified.
Possible values: 1, 2, 3, 4
Default value: 1
Hacking your DPF
----------------
For hacking your DPF you need this dpf-ax package:
http://tech.section5.ch/files/dpfhack-0.12devel.tgz
First of all, let me quote this from the dpf-ax README ((c) 4/2011, hackfin):
[quote]
Also note: NO SUPPORT! NO WARRANTY! FRIENDS DON'T MAKE FRIENDS HACK THEIR
DPF! LET ALONE NON-FRIENDS! (Bottomline: Don't ask me if I can hack your DPF).
If you wish to hack your DPF, please check the sites listed below.
.
.
Find updates and documentation here:
http://tech.section5.ch/news/?p=68
or here:
http://picframe.spritesserver.nl/wiki/index.php/DPF_with_AppoTech_AX206
For our german users, a very good explanation is found here:
http://geekparadise.de/2011/04/digitaler-bilderrahmen-von-pearl-als-statusdisplay-fur-dockstar/
[/quote]
So if you are not sure if you have the right DPF or something goes wrong:
don't ask me ether - I'm like you only a user and not involved in the
development of the hack!
A guide how to hack the Pearl display can be found here (in german):
http://www.vdr-portal.de/board1-news/board2-vdr-news/p1015287-announce-graphlcd-base-vdr-plugin-touchcol-branch/#post1015287
|
