Hi Gurus of linux-input! Please help with setuping IRQ mode for touchscreen. It is declared http://linux-sunxi.org/Touchscreen#General_information the following: "In Interrupt mode every time an event on the touchscreen occurs the INT pin triggers and notifies the CPU. the cpu then read the new event from the touchscreen" Could someone please explain the logic (details) howto process IRQ for touchscreen. Input info: have initialized successfully TS and loaded its firmware, standard registers output correct data! in ACPI irq is 0x44. i2cbus 3, address is 0x30. Do not know wakeup pin, actually TS available without any gpios for loading firmware and reading from it. What was done by myself: I have registered irq in such way: //handler static irqreturn_t icn85xx_ts_interrupt(int irq, void *dev_id){ struct icn85xx_ts_data *icn85xx_ts = dev_id; printk("==========------icn85xx_ts TS Interrupt-----===========\n"); return 0; } err = request_irq(icn85xx_ts->irq, icn85xx_ts_interrupt, IRQ_TYPE_EDGE_FALLING, "icn85xx_ts", icn85xx_ts); if (err < 0){ icn85xx_error("icn85xx_ts_probe: request irq failed\n"); return err; } As result have received this: (looks like no any occurrences of my handler for irq 0x44 = dec: 68) cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 68: 0 0 0 0 BYT-GPIO 60 icn85xx_ts Questions: 1) Does this correct IRQ settings for TS? If not - what is procedure? What I have missed? H 2) What does mean BYT-GPIO 60 in cat /proc/interrupts? I could not obtain gpio 60 via gpio_request(60, "TS_INT"); 3) how it could be in code example setuping irq with gpio for touch? Is this so: a) obtain gpio b) setup gpio to in direction c) request irg 4) How to find out gpio for setuping irq having decoded ACPI DSDT,working Android and Windows with this touch. Kind regards, Serge Kolotylo. -- 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
