Hi Ksenija, > Ksenija Stanojevic <ksenija.stanojevic@xxxxxxxxx> hat am 29. Januar 2017 um 19:04 geschrieben: > > > Add 4-wire/5-wire touchscreen controller. i compiled all 3 driver as a module and kept the devicetree for the Olinuxino iMX233 [1] as it is (no touchscreen). After booting all 3 driver are loaded: Module Size Used by mxs_lradc_adc 11000 0 industrialio_triggered_buffer 2628 1 mxs_lradc_adc kfifo_buf 3337 1 industrialio_triggered_buffer mxs_lradc_ts 4192 0 mxs_lradc 4402 0 mfd_core 4612 1 mxs_lradc But the touchscreen driver threw this error: [ 427.230000] mxs-lradc-ts: probe of mxs-lradc-ts failed with error -22 I didn't expect this behavior. I expect that the touchscreen driver notice that there isn't a touchscreen property and abort probing silently. Also i didn't expected that the driver is still loaded in case of a probe error. Btw shouldn't be the mxs_lradc_adc "Used by" mxs_lradc? Because "modprobe -r mxs_lradc" doesn't unload mxs_lradc_adc. [1] - http://lxr.free-electrons.com/source/arch/arm/boot/dts/imx23-olinuxino.dts -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html