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|
use evdev_rs::enums::*;
use evdev_rs::*;
use std::fs::OpenOptions;
use std::io;
use std::io::ErrorKind;
use std::io::Read;
use std::os::unix::fs::OpenOptionsExt;
fn usage() {
println!("Usage: evtest /path/to/device");
}
fn print_abs_bits(dev: &Device, axis: &EV_ABS) {
let code = EventCode::EV_ABS(axis.clone());
if !dev.has(code) {
return;
}
let abs = dev.abs_info(&code).unwrap();
println!("\tValue\t{}", abs.value);
println!("\tMin\t{}", abs.minimum);
println!("\tMax\t{}", abs.maximum);
if abs.fuzz != 0 {
println!("\tFuzz\t{}", abs.fuzz);
}
if abs.flat != 0 {
println!("\tFlat\t{}", abs.flat);
}
if abs.resolution != 0 {
println!("\tResolution\t{}", abs.resolution);
}
}
fn print_code_bits(dev: &Device, ev_type: &EventType) {
for code in EventCodeIterator::new(ev_type) {
if !dev.has(code) {
continue;
}
println!(" Event code: {}", code);
match code {
EventCode::EV_ABS(k) => print_abs_bits(dev, &k),
_ => (),
}
}
}
fn print_bits(dev: &Device) {
println!("Supported events:");
for ev_type in EventTypeIterator::new() {
if dev.has(ev_type) {
println!(" Event type: {} ", ev_type);
}
match ev_type {
EventType::EV_KEY
| EventType::EV_REL
| EventType::EV_ABS
| EventType::EV_LED => print_code_bits(dev, &ev_type),
_ => (),
}
}
}
fn print_props(dev: &Device) {
println!("Properties:");
for input_prop in InputPropIterator::new() {
if dev.has_property(&input_prop) {
println!(" Property type: {}", input_prop);
}
}
}
fn print_event(ev: &InputEvent) {
match ev.event_code {
EventCode::EV_SYN(_) => println!(
"Event: time {}.{}, ++++++++++++++++++++ {} +++++++++++++++",
ev.time.tv_sec,
ev.time.tv_usec,
ev.event_type().unwrap()
),
_ => println!(
"Event: time {}.{}, type {} , code {} , value {}",
ev.time.tv_sec,
ev.time.tv_usec,
ev.event_type()
.map(|ev_type| format!("{}", ev_type))
.unwrap_or("None".to_owned()),
ev.event_code,
ev.value
),
}
}
fn print_sync_dropped_event(ev: &InputEvent) {
print!("SYNC DROPPED: ");
print_event(ev);
}
fn main() {
let mut args = std::env::args();
if args.len() != 2 {
usage();
std::process::exit(1);
}
let path = &args.nth(1).unwrap();
let mut file = OpenOptions::new()
.read(true)
.write(true)
.custom_flags(libc::O_NONBLOCK)
.open(path)
.unwrap();
let mut buffer = Vec::new();
let result = file.read_to_end(&mut buffer);
if result.is_ok() || result.unwrap_err().kind() != ErrorKind::WouldBlock {
println!("Failed to drain pending events from device file");
}
let u_d = UninitDevice::new().unwrap();
let d = u_d.set_file(file).unwrap();
println!(
"Input device ID: bus 0x{:x} vendor 0x{:x} product 0x{:x}",
d.bustype(),
d.vendor_id(),
d.product_id()
);
println!("Evdev version: {:x}", d.driver_version());
println!("Input device name: \"{}\"", d.name().unwrap_or(""));
println!("Phys location: {}", d.phys().unwrap_or(""));
println!("Uniq identifier: {}", d.uniq().unwrap_or(""));
print_bits(&d);
print_props(&d);
let mut a: io::Result<(ReadStatus, InputEvent)>;
loop {
a = d.next_event(ReadFlag::NORMAL);
if a.is_ok() {
let mut result = a.ok().unwrap();
match result.0 {
ReadStatus::Sync => {
println!("::::::::::::::::::::: dropped ::::::::::::::::::::::");
while result.0 == ReadStatus::Sync {
print_sync_dropped_event(&result.1);
a = d.next_event(ReadFlag::SYNC);
if a.is_ok() {
result = a.ok().unwrap();
} else {
break;
}
}
println!("::::::::::::::::::::: re-synced ::::::::::::::::::::");
}
ReadStatus::Success => print_event(&result.1),
}
} else {
let err = a.err().unwrap();
match err.raw_os_error() {
Some(libc::EAGAIN) => continue,
_ => {
println!("{}", err);
break;
}
}
}
}
}
|
