[NEWS]Mi 4c kernel source to be released soon!

[Logic_]

Is the kernel source tied to an android version, or is it enough to assure further updates?

To put it very simplistic:
Kernels make up the layer in between the hardware and the operating system. It ensures that Android (or other OS's) is able to address and make the best use of the specific hardware configuration of the device.

So it is tied to the hardware, not to any Android version. That is why open kernel sources are so very important to android development, it opens up so many possibilities.

 

[johnHooke]

I hope sources are complete...

 

[Fahrenheit51]

Ok now this should the real kernel source code. Right?
https://github.com/MiCode/Xiaomi_Kernel_OpenSource/tree/libra-l-oss

 

[christianvari]

Ok now this should the real kernel source code. Right?
https://github.com/MiCode/Xiaomi_Kernel_OpenSource/tree/libra-l-oss

Yes.

 

[ketut.kumajaya]

I hope sources are complete...

Complete, except WiFi kernel module source code. My device booted up with my own build, without WiFi support for now WiFi source code available at CAF.

 

[ketut.kumajaya]

Complete source code including WiFi driver https://github.com/kumajaya/android_kernel_xiaomi_msm8992 libra-l-oss-kumajaya branch. About WiFi MAC address issue, I have a fully working solution in userspace.

 

[crazykiller123]

Complete source code including WiFi driver [...] libra-l-oss-kumajaya branch. About WiFi MAC address issue, I have a fully working solution in userspace.

Can you explain the difference between your kernel version and the official release from a few days ago?

 

[ketut.kumajaya]

Can you explain the difference between your kernel version and the official release from a few days ago?

- Fully working source, Xiaomi source code have no WiFi driver
- Current Qualcomm Lollipop release merged
- Newer WiFi driver version 4.4.24.26 but need a trick for proper MAC address
- Small size final boot image, 29.3MB vs 46MB stock kernel
- F2fs support
- Default noop scheduler, bfq when boot completed
- Secure boot, device lock disabled. My kernel will boot MIUI 7.2.1.0 with old bootloader

Current commits https://github.com/kumajaya/android_kernel_xiaomi_msm8992/commits/libra-l-oss-kumajaya

 

[Noxxar]

Do you think it would be possible to fix the multitouch problem which happens in some games with the released kernel sources?
I think it might be related to the synaptics touch drivers und the edge tap feature in this device.

 

[Logic_]

Do you think it would be possible to fix the multitouch problem which happens in some games with the released kernel sources?
I think it might be related to the synaptics touch drivers und the edge tap feature in this device.

Just to clarify: this isn't something tied to some games, it is entirely persistent. Meaning that as soon as 2 or more touch points register, the entire outer edge of the screen becomes unresponsive but only by ~1 millimeter.
This feels like it's a misguided measure to minimize misregistering touches when using a 5-inch phone one-handed.

That said, I have no idea if something like that could be hard calibrated into the touch panels or if maybe it's software dependent.

 

[tuanhung303]

- Fully working source, Xiaomi source code have no WiFi driver
- Current Qualcomm Lollipop release merged
- Newer WiFi driver version 4.4.24.26 but need a trick for proper MAC address
- Small size final boot image, 29.3MB vs 46MB stock kernel
- F2fs support
- Default noop scheduler, bfq when boot completed
- Secure boot, device lock disabled. My kernel will boot MIUI 7.2.1.0 with old bootloader

Current commits https://github.com/kumajaya/android_kernel_xiaomi_msm8992/commits/libra-l-oss-kumajaya

wao f2fs support, that's great . But how to apply your kernel into our current rom .

 

[ajitkatte]

But I don't understand one thing if they released the sources for mi3 mi4 2-3 days ago then how these devices have official cm support?

Sources of Mi3/4 have been released approx. a year ago. That why there are a lot of roms for these devices.

 

[ketut.kumajaya]

wao f2fs support, that's great . But how to apply your kernel into our current rom .

You can try "fastboot boot boot-20160322.img" to check if my kernel really boot your device. You can download it from https://goo.gl/sLLLdb , no flashable zip yet.

 

[tuanhung303]

You can try "fastboot boot boot-20160322.img" to check if my kernel really boot your device. You can download it from https://goo.gl/sLLLdb , no flashable zip yet.

sorry I haven't done this before.

I tried your command and receive "booting..." from fastboot cmd, then my device is still at fastboot...

 

[ketut.kumajaya]

sorry I haven't done this before.

I tried your command and receive "booting..." from fastboot cmd, then my device is still at fastboot...

My kernel for stock ROM, tested on MIUI 7.2.1.0, old bootloader.

 

[Joe bill]

We can use flashify, or not ?

 

[michfood]

You can try "fastboot boot boot-20160322.img" to check if my kernel really boot your device. You can download it from https://goo.gl/sLLLdb , no flashable zip yet.

I`ve flash it. 7.2.3 xiaomi.eu stable. It works!
Thanks a lot!

But WIFI not works on default governor, should i always set userspace manually? Maybe you neef some tester's info?

 

[solis_f]

Any fully working kernel with f2fs support yet ready? Thanks for your efforts!

 

[ketut.kumajaya]

I`ve flash it. 7.2.3 xiaomi.eu stable. It works!
Thanks a lot!

But WIFI not works on default governor, should i always set userspace manually? Maybe you neef some tester's info?

I don't get how governor affect WiFi. For proper MAC address, please check http://forum.xda-developers.com/showpost.php?p=66012034&postcount=79

 

[siul_lasc]

Hi everyone

I've seen in qualcomm chipset specs site that the true max clock speed of this sd808 is 2.0Ghz instead of the original 1.8Ghz. At least for the 2 A57 cores. Well, now with the kernel source released might we get some hope to have our chipset's speed truly released???

Thanks in advance