![]() |
#16 |
E-Reader
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 274
Karma: 1606616
Join Date: Oct 2012
Device: DPT-S1
|
Yeah thanks, I think the Kobo Mini doesn't match my requirement for screen resolution. Do you think the same will be possible on the Kobo HD?
Edit: I gather from one of the German threads that the solution should work equally well on a Touch and Glo, so that should include the HD! Last edited by ManDay; 06-24-2014 at 02:21 AM. |
![]() |
![]() |
![]() |
#17 |
E-Reader
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 274
Karma: 1606616
Join Date: Oct 2012
Device: DPT-S1
|
Could you, in one or two sentences, please explain the graphics stack for the e-ink (i.e. kernel and userspace/x11 part)?
|
![]() |
![]() |
![]() |
#18 | |
Wizard
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 3,463
Karma: 10684861
Join Date: May 2006
Device: PocketBook 360, before it was Sony Reader, cassiopeia A-20
|
Quote:
However, ALL of them are closed. Some more than others. One of the most open traditional devices out there is PocketBook. I currently own PocketBook Touch Lux 623. It is relatively open device - you do not have to hack it to install third-party binaries, dictionaries, fonts, backgrounds, complete GUI revamp, alternative reading software, terminal emulator (with access to system, including Busybox userland binaries inside reader), FTP server that provides full access to system parititions, I have even installed full version of Vim on it. There is even semi-official SDK available. I say semi-official, because Once Upon A Time (TM) they have released an SDK and haven't updated it for the newest firmware for a long time. But, it is obviously Good Enough (TM) to produce the aforementioned terminal emulator, Vim, third-party Coolreader, ftp server, a few games. But! PocketBook developers have always jealously guarded the boot-loader and kernel (with proprietary drivers and libraries binaries) and other stuff, so that users and/or competitors couldn't get their software and install it on other Netronix based devices. Long time ago PocketBook used generic Netronix hardware that was also used by other OEM e-ink device "manufacurers" to produce similar devices with inferior software. Nowadays their hardware is custom-built by Foxcon I think. To sum it up: I think that PocketBook is one of the most open [traditional Linux] devices out there, yet it is far from openness that you require. Android devices are a minority among e-ink reading devices. Most of them, such as Sony PRS-T2 and T3 have been locked down real tight (no jailbreak or root at the time I last bothered to look). Some were easier to break into, such as Nook Simple Touch, the old Nook color, but they have a very old Android version (something like 2.2). Recently a very interesting device has been introduced and started to sell here in Europe - Onyx Boox T68 with Android 4.something, full Google Play Store and other goodies. Have a look at recent posts in this thread: https://www.mobileread.com/forums/sho...d.php?t=225652 I am waiting for Onyx Boox Midia Inkphone E43 - a mobile phone with 4.3 inch e-ink diaplay, Android 2.3 (I know it *is* old, but at least you can install software to SD card, unlike on Nook Simple Touch), full Google Play Store. They have announced release for May 2014, then corrected the release date on their page for "May-June 2014", but I have a sinking feeling that they are not going to deliver in the next week or so ;-( I am hoping they have postponed the release so they could provide better Android version or something. |
|
![]() |
![]() |
![]() |
#19 |
E-Reader
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 274
Karma: 1606616
Join Date: Oct 2012
Device: DPT-S1
|
Thanks for the description kacir. I've never taken an ereader apart myself, but I think the "locking down" should be less of a problem than the lack of working drivers (which are open enough to integrate them with a user kernel).
I reckon that with a minimal set of electronic skills one can always open the device to gain direct access to its harddisk. Last edited by ManDay; 06-24-2014 at 07:40 AM. |
![]() |
![]() |
![]() |
#20 | |
Wizard
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 3,463
Karma: 10684861
Join Date: May 2006
Device: PocketBook 360, before it was Sony Reader, cassiopeia A-20
|
Quote:
There are other devices (Kobo or Nook) that have internal SD card - I have read discussion just yesterday. I have opened my PocketBook 623 and I can't see any SD card like PB360+ had. I can't see any obvious way to connect to the internal memory. |
|
![]() |
![]() |
![]() |
#21 | |
Junior Member
![]() Posts: 9
Karma: 36
Join Date: Jan 2014
Device: Kobo Mini
|
Quote:
The stacks produced by members of this forum seem to be based on familiar desktop environments available for Linux distributions, such as Debian, and use X11 as a result. I based my stack on Debian, too, but also use the Qt library to write directly to the framebuffer, so I'm running a kind of hybrid system. I use a kernel modified by Marek (who also produced a Debian-based image for the Kobo) that improves the level of support for the screen, and which works very well. ![]() Does that make sense? ![]() |
|
![]() |
![]() |
![]() |
#22 | |
E-Reader
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 274
Karma: 1606616
Join Date: Oct 2012
Device: DPT-S1
|
Quote:
What do you mean by the Qt library writes directly to the FB? Is that some userspace driver thing or do you rather mean that the kernel has FB support for the eink (and Qt uses that FB?) Any idea about how well written the eink part is (regarding energy efficiency, for example)? The way you describe it, it looks like with the according e-ink patch I can have a working kernel with a working FB, which is just perfect (well, perfect would be if Marek could push his patch upsteam ![]() Sure, any links and resources would be greatly appreciated! |
|
![]() |
![]() |
![]() |
#23 | ||||
Junior Member
![]() Posts: 9
Karma: 36
Join Date: Jan 2014
Device: Kobo Mini
|
Quote:
Quote:
Marek's version of the kernel can also be found on Github. Quote:
![]() Quote:
![]() |
||||
![]() |
![]() |
![]() |
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
O Battery life, battery, wherefore art thou, battery life? | DeusExMe | Amazon Kindle | 30 | 02-21-2012 06:28 PM |
Fonts for body text - a small study (long) | derangedhermit | Workshop | 9 | 08-25-2011 04:27 AM |
Long battery life vs General purpose facilities | Namekuseijin | General Discussions | 4 | 06-22-2011 01:36 PM |
PRS-900 how long is the battery life? | Janette55 | Sony Reader | 0 | 04-19-2011 04:24 PM |
Long life mobile battery 'vital' | Laurens | Lounge | 0 | 09-21-2005 04:58 AM |