Hi again, Just let you know about a quick solution on this issue.
Try to use request_irq() instead of request_threaded_irq(), this solves the issue and you will get the irq function called when press the screen. However, you need to modify the remaining part of driver file to handle press sequences in a proper way. Regards, Ozgur. On Thursday, July 10, 2014 3:47:24 PM UTC+1, ozka...@gmail.com wrote: > > > Hi, > > I have been trying to enable TSC2007 (ULCD) in Kernel 3.7.10-x13 (Robert > Nelson) but having an error in tsc2007.c as follows: > "tsc2007: probe of 2-0049 failed with error -22" > > After investigated further discovered that the root of error message seems > in /kernel/irq/manage.c in request_threaded_irq function as > !irq_settings_can_request. Since this call returns an error, the driver > probe returns with the failure. > > Any reply or guidance will be greatly appreciated. > > Regards, > Ozkan. > > > > On Saturday, April 6, 2013 10:06:56 PM UTC+1, RobertCNelson wrote: >> >> On Sat, Apr 6, 2013 at 3:36 PM, <wil...@airinet.com> wrote: >> > Good afternoon everyone, I hope everyone is well! >> > >> > I have a Beagleboard setup that I am trying to get a touchscreen >> working on. >> > Here's a list of our hardware: >> > >> > ULCD7 (Circuit Co) >> > Beagleboard xM >> > Running Ubuntu 12.10 >> > >> > ---------- >> > root@WallController:~# uname -a >> > Linux WallController 3.7.10-x10 #1 SMP Thu Mar 28 13:45:57 UTC 2013 >> armv7l >> > armv7l armv7l GNU/Linux >> > ---------- >> > >> > The kernel Command Line indicates that it is detecting "bbtoys-ulcd" as >> > buddy2: >> > >> > ---------- >> > [ 0.000000] Kernel command line: console=ttyO2,115200n8 vram= >> > omapfb.mode=dvi:800x480MR-16@60 omapdss.def_disp=dvi >> root=/dev/mmcblk0p2 ro >> > rootfstype=ext4 rootwait fixrtc buddy=spidev buddy2=bbtoys-ulcd >> camera=none >> > wl12xx_clk= >> > ---------- >> > >> > I've confirmed that there IS support for the ULCD7 in the linux kernel >> > (tsc2007). I can even see the driver try to initialize the ULCD7 >> > >> > ---------- >> > root@WallController:~# dmesg | grep tsc >> > [ 0.126098] Beagle expansionboard: initializing touchscreen: tsc2007 >> > [ 26.450286] tsc2007 2-0048: irq 0 busy? >> > [ 26.454467] tsc2007: probe of 2-0048 failed with error -22 >> >> Maybe try bumping the i2c speed down from 400 to 200... >> >> This is the patch in the v3.7.x branch that enables the screen and >> touch controller.. >> >> >> https://github.com/RobertCNelson/stable-kernel/blob/v3.7.x/patches/omap_beagle_expansion/0005-Beagle-expansion-add-CircuitCo-ulcd-Support.patch >> >> >> Note, it looks like v3.9-rcX is doing the same thing.. >> >> Regards, >> >> -- >> Robert Nelson >> http://www.rcn-ee.com/ >> > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
