Gkernels 1.5 FINAL - Streak 5 Android Development

For use with Streak Gingerbread Roms
Edit 12-7-11
This is the marked end of Gkernels project,
Gkernels 1.5 FINAL
but the marked beginning of Gxkernels!
Changes to 1.5 include:
Bumped the Dell source to 2.6.35.14 -Stable
Removed QoS in networking for reasons clear to my mind
Flashable zip here: http://db.tt/JuCSscC8
Developer tar.gz here: http://db.tt/pNkHIPRQ
Special thanks to you, the user of Gkernels!
-G
Edit 12-4-11
Gkernels1.4.3.1 now a flashable zip from your recovery, for easy installs!
lex parsimoniae
Special thanks going to _n0p_ for this method!
Download link here:http://db.tt/XrDJQ6Jv
to install:
copy the zip to sdcard, launch recovery in your streak, flash the zip file
for future releases, I will include the standard Gkernels tar.gz for rom developers, and also the flashable zip file, as two separate links for the community.
-Greg
Edit 12-3-11
GKERNELS1.4.3.1
Built with an older toolchain arm-eabi-4.3.1
Changes from 1.4.0.1 include:
<*> General filesystem local caching manager
<*> Filesystem caching on files
Wifi-
<*> Common routines for IEEE802.11 drivers
--- Bluetooth subsystem support
[*] L2CAP Extended Features support (EXPERIMENTAL)
networking options-
[*] IP: multicasting
[*] IP: ARP daemon support
Qos service changed-
<*> Hierarchical Fair Service Curve (HFSC)
---removed from 1.4.0.1 version---
adjust priority to speedup resume thread, (seems to help with wifi issue, special thanks DSC-Team)
Again, no overclocking;
Download Link here: http://db.tt/0vlfvlaI
Edit 11-27-11
1.4.0.1
changes since 1.3.3:
Suspend sleep mode (Power collapse suspend)
Control the low power modes of memory
Default Memory Low Power Mode during Idle (Memory in retention)
Default Memory Low Power Mode during Suspend (Memory in deep power down)
Enable standalone power collapse
Android RAM Console Enable error correction
Virtual Contiguous Memory (VCM) Layer
Download link: http://db.tt/ZnaqJ9qH
I am fairly certain wifi freeze issue is resolved. Further testing is needed to prove this;
Enjoy!
-Greg
Gkernels 1.3.3 still attached below
Gkernels 1.3.3
changes from Gkernels1.0
Enable WiFi control function abstraction
Preallocate memory for WiFi buffers
Enable KSM for page merging
Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)
I've got some under-volting going on with static voltage regulator
kernel switched to low resolution timer
Cross-Compiled using arm-eabi-4.4.3 from Dell 4.05 source, thanks given to Dj Steve for his tip with wifi practices. Thanks going out to kernel cross-compiling sources and books; thanks to all the rom chefs;
To me, Streak kernel work is more of an art than a science. Include Gkernels in your rom; do what you feel with it, all is permitted.
Installation Instructions
Method 1:Assumption is on a linux distro,
obtain a prebuilt fastboot and adb binary, and get them into your /bin folder, to use the commands from anywhere within your system
download Gkernels1.3 and extract, if you have not already done so.
attach streak to computer with usb cable;
from the extracted archive directory run this command in terminal:
sudo adb reboot bootloader
the streak will then boot into the fastboot mode
Then:
fastboot -i 0x413c flash boot boot.img
Then:
fastboot -i 0x413c reboot
then from same directory, run this command as phone is rebooting:
sudo adb push dhd.ko /system/lib/modules
I then recommend rebooting one more time.
Method 2: Any system
Re-substitute the boot.img and dhd.ko in the archive, by replacing same files, in your chosen rom's update zip;
transfer to the device
then flash as you would, the rom using your prior flashed recovery.
Thanks to Delirium77!
Method 3: Bypass for adb with root explorer/total commander app from the market
flash the boot.img with fastboot per method 1-
copy the dhd.ko file to your sd card, unplug your device, and using root explorer/total commander, navigate to the file on the sdcard, then move it to:
/system/lib/modules
ensure the dhd.ko file has correct permissions, then your wifi will function after a reboot.
-Greg

---

Thanks for your work!
can you build for your kernel few modules?
cifs.ko, slow-work.ko
for slow-work there is some kind of manual editing and preparing.
or if you give me your .config i will try this myself?
EDIT:
also you can statically compile CIFS filesystem into kernel

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mind if i ask what advantage/s does this kernel have over Steve's gingerstreak kernel?

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I can provide a .config file, sometime this evening, as I am away-

---

Gkernels is a project based on the 4.05 Dell source;
It is not better than another kernel in that regard, I am trying to get all I can out of it, without overclock. Changes to my knowledge, that differ from the Steve kernel, are listed above;
Thanks to _n0p_ 's tip 1.3.3 solves the RTC issue- Thanks _n0p_
I believe this was done by changing to the low resolution timer.
-Greg

---

.config
Sorry for the delay, I was detained-
attached is the .config for 1.3.3

---

Working with an attempt to solve the wifi issues-
one environment seemed to work during my testing, yet at a great sacrifice to battery life, by enabling:
control the low power modes of memory -->
Default Memory Low Power Mode during Idle (Memory active)
Default Memory Low Power Mode during Suspend (Memory active)
I am still uncertain-
before I release a 1.4, I will trial more of these modes
-Greg

---

Can this modes be switched by detecting if external power supplied?
--
I've also recieved some requests, saying that power (and maybe other) buttons sometimes "flickers". Is there any way to filter key events a little?
--
Thank you for your devotion,
Sergei

---

I will look into this.

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Hi, there seems to be some screen tearing , I suspect that it has something to do with vsync. Could this be fixed with a new kernel update or is this ROM related?

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Sharptv-
This may be kernel, rom or both related;
you may try and experiment with different roms and kernels-
This could also be screen density related, on my device there is minimal tearing on default density

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I had some screen tearing on power rom but none on DSC....
Good work on the kernal
May bishnu grant you many donkeys and wives

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@Roy
are u indian

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Hi GSpecial!
I'd like to ask you to join forces with ltrifonov.
You both are advanced system builders, i think Streakers community would really benefit from your teamwork!

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That's an awesome job you are doing. Never was able to crack more than 1500 upload until now!
Sent from the SuperStreak!

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borijess said:
That's an awesome job you are doing. Never was able to crack more than 1500 upload until now!
Sent from the SuperStreak!
Click to expand...
Click to collapse
Is this considered a good score?? I just did the test and got 10ping, 15162kbps down and 8912kbps up
Sent from my Dell Streak using xda premium

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Greg, your new kernel 1.4.0.1 (can say after a day of tests), is absolutely fantastic.
Fast, responsive even with conservative governor waking from 128Mhz - and WiFi is simply excellent!
Thank you!

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Nop can you make a flashable zip plz???

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You might pay attention to Downloads section for DSC ROM (not ad )

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greekunit690 said:
Is this considered a good score?? I just did the test and got 10ping, 15162kbps down and 8912kbps up
Sent from my Dell Streak using xda premium
Click to expand...
Click to collapse
I guess compared to u rs no but normally I was getting around 1000 up. So its 3 times as fast now for me.
Sent from the SuperStreak!