[Galaxy Tab 8.9 General] nrvate:
EDIT: I created a separate thread for doing the CM10 build: http://xdaforums.com/showthread.php?t=1867579

Cheers!

Still hacking stuff.. lol.. using the file list from the msm-8660 common proprietary file list, i grabbed that set of files from the CM10 i717 ROM and dropped them onto the i957. Working audio! Don't know about the mic, but it plays sound now. Also, it almost got LTE working... logcat -b radio shows the LTE radio finding the LTE cell and reporting signal strength, but the data session doesn't actually establish, even with the proper APN config. GPS looks like it might even eventually lock on, it found 2 sats after a while, but didn't get a lock. I suspect when full 4G comes up, it'll be able to use SUPL to get it's initial location then actually get a fix.

Downloading the gigantic i717 stock image, going to see if 4G plays nicer with the note radios, since I'm using the note RIL now.. Dan had mentioned he had successfully got the note radios running on the tab 8.9 LTE in an attempt to get voice calls up... the honeycomb RIL stuff just results in lots of errors, so thats straight fail.

I didn't realize how many software pieces go into the cellular data connectivity, yikes!

The more I delve into code and binary packages... the more it appears the 957 is very close to a supersized note! sweet.

Also, bluetooth finds my neighbors macbook, so it probably works, but my headset is at work and I haven't been there in a while (hence having time to do this fun stuff).

If anyone has any suggestions on getting LTE up, I'm all ears. If I can get LTE working, I might be tempted to try to package this beast up.

More fun...

Good grief, it looks like the userdebug variant compiles with all the radio debug flags on, thousands and thousands of lines of everything from verbose text to hex dumps!

i957 honeycomb radio: baseband shows unknown, isn't worth anything

i717 ICS radios, both UCLF5 and 6: entire tablet slows to a crawl once rild starts, fail! Nothing useful in the logs as to why, nothing hogging CPU time... no idea, abort

i727 skyrocket ICS radio I727UCALC4 (no idea how current or valid this radio really is): gets HSPA+ on old 3G "wap.cingular" SIM, no luck with tablet only LTE "Broadband" APN SIM. ~2-2.5mbit download speed.

i727 skyrocket ICS radio UCLD2: Obtained HSPA+ with Broadband APN data-only SIM. ~4.0-5 mbit download speeds. After ~10 minutes, found an LTE cell and pulled 30-35mbit down. After each radio reset (reboot, airplane mode, etc) it takes the 3-10 minute period to get LTE again, and it's also slow (10-50 seconds) to get on HSPA. All around sluggish to jump on a cell, but returns nice speeds once it does so.

i727 skyrocket ICS radio UCLF6 (latest I could find): Pretty much the same as UCLD2 above, similar speeds, but seemed to jump on LTE quicker after a reboot, but still takes a while when coming back from airplane mode. It's the latest, i think, and it works, so it's probably the way to go.

Pending investigation: RIL files -- going to try the skyrocket UCLF6 RIL and see how it works out. Currently still using the note RIL files. Tried UCALC4 skyrocket RIL and it didn't work at all, will try UCLF6 from stock skyrocket ICS release...

Looks like it doesn't like the Broadband APN on a tablet (data-plan-only) SIM. I tossed in a "old school phone SIM" from the 3G days, which is set up on an unlimited phone/data plan (as you could get ages ago) and gave it wap.cingular, and whamo, HSPA+ connectivity. Looks more like a configuration issue and/or the phone RIL/radio combination refuse to play nice with data-only SIM.

I've never tried to debug getting onto 3G/4G service at the RIL radio log level, so not totally sure what to look for, but... guessing it's trying to set up a voice bearer and the UMTS system says F you. need foods, sleep, etc... haha.

And more fun... Skyrocket UCLD2 radio returns HSPA+ connectivity on data-only SIM with Broadband APN, but no LTE. Set APN type to "supl" to enable SUPL, got the first GPS fix in about 2 minutes, after 5 more minutes found 12 sats and obtained 12m accuracy.. sweet!

Update: UCLD2 radio, after sitting around idling for 10 minutes while I made some munchies, decided it would pick up an LTE cell. No idea why it took so long, I'm really close to an LTE cell and both my other LTE devices have never (and don't presently) exhibit this behavior at my location. I suspect this is probably normal behavior of UCLD2 or UCLD2 plays less than optimally with the i957 radio... which should be the same as a skyrocket radio, considering both identify as an M8260 when inquired with "ati" via ttyACM0. Whatever the case, 50ms ping and 30 mbit down works for me...

I really should go to bed sometime...... and make a backup of this device before I bust something! :)

Adding a little more info: I modified device/samsung/p5att/BoardConfig.mk a little before building... Other devices with no SD card slot had BOARD_HAS_SD_CARD_INTERNAL defined, so i tossed that in. The BOARD_SDCARD_DEVICE_PRIMARY, BOARD_SDCARD_DEVICE_SECONDARY and BOARD_SDEXT_DEVICE_SDEXT values seemed bogus, and I knew the init scripts would set up /sdcard as a fuse device on the /data partition anyways, so I just commented them out.

I don't know if anything uses the 3 values I commented out, but since there's no actual mmcblk device for the fuse (filesystem in user space) emulated sdcard, it doesn't seem a valid value could be found, so, why set one.... :) Seems to work!

But, this is my first attempt at hacking cyanogenmod onto a half-baked device, so... don't take my word for it ;)

And before anyone asks, yes, I plan on releasing a flashable update for this, but first... figuring out enough to start from a fresh source tree and build from scratch so I can document how I did this... Let's beat the carriers to jellybean and forget ICS :D

(yes, I'm editing this post a bazillion times as try stuff, I'll put together something a little more coherent soon)