Turns out the error is coming from the tslib from fbutils.c. Looks like I can open /dev/fb0 but not perform those ioctls on it. I'm going to try commenting them out and hardcoding the screen resolution and see if I get further.
On Sun, Aug 23, 2009 at 6:49 PM, Scott Zimmerman <> wrote:
I'm back to it again. I recompiled my tslib, and this time I actually used the CCFLAGS and LDFLAGS to make sure it was including the correct libs and include files. Now I've ended up with a tslib that reports the right stuff when I run ldd on the 7390. So that's all good. I checked my configuration and made sure my ts.conf file and it's configured like this:
module_raw input
module pthres pmin=1
module variance delta=30
module dejitter delta=100
module linear
When I built tslib, I left off the "--disableinputapi" flag from configure as that makes the test apps open "/dev/event0" instead of the "/dev/touchscreen/ucb1x00" device which doesn't exist on my 7390.
Now when I run any of the ts apps I get this:
/mnt/root/usr/local/linux-arm/bin # ./ts_calibrate
ioctl FBIOGET_FSCREENINFO: Inappropriate ioctl for device
When I look at the loaded modules, I see this:
/mnt/root/usr/local/linux-arm/bin # lsmod
Module Size Used by
fbcon 40472 65
font 7968 1 fbcon
bitblit 4672 1 fbcon
softcursor 1632 1 bitblit
mousedev 10144 0
usbhid 16036 0
hid 25952 1 usbhid
ohci_hcd 27304 0
usbcore 121500 3 usbhid,ohci_hcd
ts_lcd 4160 0
evdev 8096 0
ts7370fb 5732 1
tsuart7350 2024 0
tsuart1 13868 1 tsuart7350
tssdcard 31836 0
ts7350 2928 0
/mnt/root/usr/local/linux-arm/bin #
The error being printed is not coming from the tslib, so I know I'm reaching the device. Just not sure why it's bailing out. Any clues on this would be great. I googled the error but didn't find anything related.
As for my mounts and running out of space, things look like this:
/ # mount
rootfs on / type rootfs (rw)
/dev/root on / type ext2 (rw)
none on /proc type proc (rw)
none on /sys type sysfs (rw)
none on /dev type tmpfs (rw)
none on /dev/pts type devpts (rw)
none on /dev/shm type tmpfs (rw)
192.168.1.140:/nfs/root.7390 on /mnt/root type nfs (rw,vers=3,rsize=32768,wsize=
32768,hard,nolock,proto=udp,timeo=7,retrans=3,sec=sys,addr=192.168.1.140)
/ # df
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/ram0 1507 1097 410 73% /
none 31256 416 30840 1% /dev
none 31256 0 31256 0% /dev/shm
192.168.1.140:/nfs/root.7390
186386432 51425952 125492576 29% /mnt/root
It looks to me like everyone has plenty of space, but I'm a little fuzzy on rootfs on / versus my nfs stuff on /mnt/root. I assume rootfs is a ramdisk running on / that is 73% full. Is there anyway I can get that to use my nfs mount instead?
Thanks. I think tslib was the problem with my qt stuff before. I'm going to see if I can get qt built correctly now. But I don't think it's going to run until I can make the tslib test apps run.
...Zz
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