Hi
these are my random online notes. Being sometimes dis-organised, I need to focus on some things which in hindsight may be trivia but better to put them out there so others can add knowledge if they are free to do so.
Please note this is not a post to specifically answer questions but general research and observations of what I think I know. And I may be wrong
I may also ramble on about some of my intentions
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Stock tablet ROM but rooted.
Kernel size reported on unpack follows/// md5 second bit
3673028 kernel // 947125799e8124bddcb9737a347e98ec kernel
TWRP kernel details are
3676160 kernel // e421c8e09888728b6a43aa7a63288074 kernel
########################
I think I will use the boot image kernel
#######################
In stock normal boot, AFAIK usb-otg works as expected.
in TWRP, so far I can't get it to work.
In comparing the init commands and some files and modules in stock I am leaning this way
stock has 2 modules that begin with the string rk as per image
research suggests the first one, ipp is useful for screen stuff and may resolve some upside down issues so I may inject that into any TWRP mod
The second module apparently is required for usb-otg. however this is the current config lines
Checking other init lines I see a trend that before we write any configs we turn off a service and re-enable, restart it at the end of the config as per these type entries
write /sys/class/android_usb/android0/enable 0
blah blah
write /sys/class/android_usb/android0/enable 1
now I consider otg as a USB style function and most usb entries have above formula but I may be wrong.
Testing it may prove something but unfortunately I believe I should make only small changes so I can trouble shoot my own brain .....giggles.....
thanks for reading. Feel free to add any relevant observations between stock boot up and TWRP
these are my random online notes. Being sometimes dis-organised, I need to focus on some things which in hindsight may be trivia but better to put them out there so others can add knowledge if they are free to do so.
Please note this is not a post to specifically answer questions but general research and observations of what I think I know. And I may be wrong
I may also ramble on about some of my intentions
#######################
Stock tablet ROM but rooted.
Kernel size reported on unpack follows/// md5 second bit
3673028 kernel // 947125799e8124bddcb9737a347e98ec kernel
TWRP kernel details are
3676160 kernel // e421c8e09888728b6a43aa7a63288074 kernel
########################
I think I will use the boot image kernel
#######################
In stock normal boot, AFAIK usb-otg works as expected.
in TWRP, so far I can't get it to work.
In comparing the init commands and some files and modules in stock I am leaning this way
stock has 2 modules that begin with the string rk as per image
research suggests the first one, ipp is useful for screen stuff and may resolve some upside down issues so I may inject that into any TWRP mod
The second module apparently is required for usb-otg. however this is the current config lines
Checking other init lines I see a trend that before we write any configs we turn off a service and re-enable, restart it at the end of the config as per these type entries
write /sys/class/android_usb/android0/enable 0
blah blah
write /sys/class/android_usb/android0/enable 1
now I consider otg as a USB style function and most usb entries have above formula but I may be wrong.
Testing it may prove something but unfortunately I believe I should make only small changes so I can trouble shoot my own brain .....giggles.....
thanks for reading. Feel free to add any relevant observations between stock boot up and TWRP
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