From mboxrd@z Thu Jan 1 00:00:00 1970 From: David PICARD Date: Mon, 18 Jul 2016 20:24:27 +0000 (UTC) Subject: [Buildroot] How to use the ft6236 touchscreen driver ? In-Reply-To: <20160715001556.2541f600@gmx.net> References: <20160713171659.GF2139@sapphire.tkos.co.il> <57875AE2.1010908@yahoo.fr> <20160715001556.2541f600@gmx.net> Message-ID: <819951176.1968905.1468873467924.JavaMail.yahoo@mail.yahoo.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hi Peter, It works perfectly. Thank you very much. David. Le Vendredi 15 juillet 2016 0h16, Peter Seiderer a ?crit : Hello David, On Thu, 14 Jul 2016 11:26:58 +0200, David Picard wrote: > Well, could you please give me some directions ? Like where the dts file > is, how do I compile it, some reference documentation... > Maybe try the following additions at the config.txt file (on the boot/vfat partition of the SD card): # for adafruit 2.8 tft? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? dtparam=spi=on? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? dtparam=i2c1=on dtparam=i2c_arm=on dtoverlay=pitft28-capacitive.dtbo Enable the following at the buildroot .config file: BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTB_OVERLAYS=y And copy images/rpi-firmware/overlays/pitft28-capacitive.dtbo to overlays/pitft28-capacitive.dtbo on the boot/vfat partition of the SD card... Regards, Peter > Thanks. > > Le 13/07/2016 19:16, Baruch Siach a ?crit : > > Hi David, > > > > On Wed, Jul 13, 2016 at 07:07:43PM +0200, David Picard wrote: > >> I am trying to use the touch capability of Adafruit's PiTFT 2.8" on a RPi2, > >> BR 2016.05. When I modprobe ft6236, nothing happens : no message in dmesg, > >> no device created in /dev/input. i2cdetect detects it at address 38h. > >> > >> I did load i2c_bcm2708, i2c-dev. I2C works (tested with a RTCC). > >> > >> I tried : > >> # echo ft6236 0x38 > /sys/class/i2c-adapter/i2c-1/new_device > >> > >> and I got something in dmesg : > >> ft6236 1-0038: irq is missing > >> ft6236: probe of 1-0038 failed with error -22 > >> i2c i2c-1: new_device: Instantiated device ft6236 at 0x38 > >> > >> But still no entry in /dev/input. > >> > >> Any idea ? > > > > You most likely need to update your device tree file (.dts), and add your > > PiTFT device as a sub-node of the i2c master. > > > > baruch > > > > _______________________________________________ > buildroot mailing list > buildroot at busybox.net > http://lists.busybox.net/mailman/listinfo/buildroot _______________________________________________ buildroot mailing list buildroot at busybox.net http://lists.busybox.net/mailman/listinfo/buildroot -------------- next part -------------- An HTML attachment was scrubbed... URL: