Technical questions about P4 firmware

[sadrobot]

I'm thinking of replacing my Ainol Novo Fire which has been experiencing random lockups. I've narrowed my choices to the P4 and an LG G Pad v400. I have some technical questions about the P4 firmware since unlike the G Pad there's no open source code for the P4, so I'd basically be stuck with whatever feature Pipo or Rockchip enabled at build time.


Under adb, can somebody cut and paste the output of the following command? I'm interested what filesystems the RK3288 kernel supports out of the box.

cat /proc/filesystems

I'd also like to see the available CPU speeds, possibly for downclocking using a simple init command:

grep -H .  /sys/devices/system/cpu/*/cpufreq/scaling_available_frequencies

Finally does the P4 come pre-rooted? Does adb run as root when you connect the tablet to a PC? Or alternatively can you get root level access by running the command "adb root"? I don't want to install any Supeuser app, but I'd like to get root level access via adb so I can install my own init files and /etc/hosts for ad and malware blocking purposes.

[rrileypm]

I don't have my P4 handy tonight...but stay tuned tomorrow sometime. I'm running my custom rooted ROM with CWM Superuser. Before that it wasn't rooted...but adb support is present in the stock firmware.

Sent from my M8HD using Tapatalk

[sadrobot]

I don't have my P4 handy tonight...but stay tuned tomorrow sometime. I'm running my custom rooted ROM with CWM Superuser. Before that it wasn't rooted...but adb support is present in the stock firmware.

Ok thanks. Just to clarify. ADB runs as root in the stock ROM? (-not surprising since this appears to be the case in my two other Chinese devices but not my cheap Samsung)

[rrileypm]

Here is a screenshot of the information you were looking for:

https://drive.google.com/file/d/0ByxbjJg99RBrcXRCekVnM0VLbHM/view?usp=sharing

[sadrobot]

Here is a screenshot of the information you were looking for:

https://drive.google.com/file/d/0Byx...ew?usp=sharing

Thanks. I'm somewhat disappointed Rockchip or Pipo didn't enable some standard filesystems like ISO9660, NTFS and UDF. It's still possible they're supported via FUSE module, but performance is likely to be slower. I was also hoping to see BTRFS since the Linux kernel is already up to 3.10. For comparison here's what I get on my tablet with Cyanogenmod 11 running Linux 3.0.

%  cat /proc/filesystems
nodev   sysfs
nodev   rootfs
nodev   bdev
nodev   proc
nodev   cgroup
nodev   tmpfs
nodev   devtmpfs
nodev   binfmt_misc
nodev   debugfs
nodev   securityfs
nodev   sockfs
nodev   usbfs
nodev   pipefs
nodev   anon_inodefs
nodev   devpts
        ext3
        ext2
        ext4
nodev   ramfs
        vfat
        msdos
        iso9660
        hfsplus
nodev   cifs
        ntfs
nodev   fuse
        fuseblk
nodev   fusectl
        udf
        yaffs
        yaffs2