src/roccat.rs

   1 use crate::common::*;
   2
   3 const VID: u16 = 0x1E7D;
   4 const PID: u16 = 0x2E2C;
   5 const INTERFACE: i32 = 0x00;
   6 const PAGE: u16 = 0x0B;
   7 const USAGE: u16 = 0x00;
   8
   9 pub fn get_device(api: &hidapi::HidApi) -> hidapi::HidDevice {
  10     let device_info = api
  11         .device_list()
  12         .find(|device| {
  13             device.vendor_id() == VID
  14                 && device.product_id() == PID
  15                 && device.interface_number() == INTERFACE
  16                 && device.usage_page() == PAGE
  17                 && device.usage() == USAGE
  18         })
  19         .unwrap();
  20     device_info.open_device(&api).unwrap()
  21 }
  22
  23 pub fn init(device: &hidapi::HidDevice) {
  24     let mut buffer = [0u8; 6];
  25
  26     buffer[0x00] = 0x0E;
  27     buffer[0x01] = 0x06;
  28     buffer[0x02] = 0x01;
  29     buffer[0x03] = 0x01;
  30     buffer[0x04] = 0x00;
  31     buffer[0x05] = 0xFF;
  32
  33     device
  34         .send_feature_report(&buffer)
  35         .expect("Cannot send feature report during init");
  36 }
  37
  38 pub fn set_color(device: &hidapi::HidDevice, color: &RGB) {
  39     let mut buffer = [0u8; 46];
  40     buffer[0] = 0x0D;
  41     buffer[1] = 0x2E;
  42
  43     /*
  44      * Leds:
  45      * 0: Scroll wheel.
  46      * 1-4: Strip left.
  47      * 5-8: Strip right.
  48      * 9: Lower left.
  49      * 10: Lower right.
  50      */
  51     for i in 0..=10 {
  52         let offset = i * 4 + 2;
  53         buffer[offset] = color.red;
  54         buffer[offset + 1] = color.green;
  55         buffer[offset + 2] = color.blue;
  56     }
  57
  58     device
  59         .send_feature_report(&buffer)
  60         .expect("Cannot send feature report during set color");
  61 }