void udevenum(){
struct udev_enumerate* enumerator = udev_enumerate_new(udev);
udev_enumerate_add_match_subsystem(enumerator, "usb");
udev_enumerate_add_match_sysattr(enumerator, "idVendor", V_CORSAIR_STR);
udev_enumerate_scan_devices(enumerator);
struct udev_list_entry* devices, *dev_list_entry;
devices = udev_enumerate_get_list_entry(enumerator);
udev_list_entry_foreach(dev_list_entry, devices){
const char* path = udev_list_entry_get_name(dev_list_entry);
struct udev_device* dev = udev_device_new_from_syspath(udev, path);
// If the device matches a recognized device ID, open it
const char* product = udev_device_get_sysattr_value(dev, "idProduct");
if(!strcmp(product, P_K70_STR)){
pthread_mutex_lock(&kblistmutex);
openusb(dev, 70);
pthread_mutex_unlock(&kblistmutex);
continue;
}
if(!strcmp(product, P_K95_STR)){
pthread_mutex_lock(&kblistmutex);
openusb(dev, 95);
pthread_mutex_unlock(&kblistmutex);
continue;
}
// Free the device if it wasn't used
udev_device_unref(dev);
}
udev_enumerate_unref(enumerator);
}
void usbadd(void* context, IOReturn result, void* sender, IOHIDDeviceRef device){
if(CFGetTypeID(device) != IOHIDDeviceGetTypeID())
return;
// Get the model and serial number
long idvendor = V_CORSAIR, idproduct = usbgetvalue(device, CFSTR(kIOHIDProductIDKey));
char serial[SERIAL_LEN];
CFTypeRef cfserial = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDSerialNumberKey));
if(!cfserial || CFGetTypeID(cfserial) != CFStringGetTypeID() || !CFStringGetCString(cfserial, serial, SERIAL_LEN, kCFStringEncodingASCII))
// If the serial can't be read, make one up
snprintf(serial, SERIAL_LEN, "%04x:%x04-NoID", (uint)idvendor, (uint)idproduct);
// For non-RGB models, get the firmware version here as well
long fwversion = 0;
if(!IS_RGB(idvendor, idproduct))
fwversion = usbgetvalue(device, CFSTR(kIOHIDVersionNumberKey));
pthread_mutex_lock(&kblistmutex);
// A single keyboard will generate multiple match events, so each handle has to be added to the board separately.
// Look for any partially-set up boards matching this serial number
int index = -1;
for(int i = 1; i < DEV_MAX; i++){
if(!strcmp(keyboard[i].profile.serial, serial) && keyboard[i].handle == INCOMPLETE){
index = i;
break;
}
}
// If none was found, grab the first free device
if(index == -1){
for(int i = 1; i < DEV_MAX; i++){
if(!keyboard[i].handle){
// Mark the device as in use and print out a message
index = i;
keyboard[i].handle = INCOMPLETE;
keyboard[i].fwversion = fwversion;
strcpy(keyboard[i].profile.serial, serial);
CFTypeRef cfname = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductKey));
if(cfname && CFGetTypeID(cfname) == CFStringGetTypeID())
CFStringGetCString(cfname, keyboard[i].name, NAME_LEN, kCFStringEncodingASCII);
printf("Connecting %s (S/N: %s)\n", keyboard[i].name, keyboard[i].profile.serial);
break;
}
}
}
if(index == -1){
printf("Error: No free devices\n");
pthread_mutex_unlock(&kblistmutex);
return;
}
usbdevice* kb = keyboard + index;
// There's no direct way to tell which of the four handles this is, but there's a workaround
// Each handle has a unique maximum packet size combination, so use that to place them
long input = usbgetvalue(device, CFSTR(kIOHIDMaxInputReportSizeKey));
long output = usbgetvalue(device, CFSTR(kIOHIDMaxOutputReportSizeKey));
long feature = usbgetvalue(device, CFSTR(kIOHIDMaxFeatureReportSizeKey));
// Handle 0 is for BIOS mode input (RGB) or non-RGB key input
if(input == 8 && output == 1 && feature == 0)
kb->handles[0] = device;
// Handle 1 is for standard HID input (RGB) or media keys (non-RGB)
else if((input == 21 && output == 1 && feature == 1)
|| (input == 4 && output == 0 && feature == 0))
kb->handles[1] = device;
// Handle 2 is for Corsair inputs, unused on non-RGB
else if(((input == 64 || input == 15) && output == 0 && feature == 0)
|| (input == 64 && output == 64 && feature == 0)) // FW >= 1.20
kb->handles[2] = device;
// Handle 3 is for controlling the device (only exists for RGB)
else if((input == 0 && output == 0 && feature == 64)
|| (input == 64 && output == 64 && feature == 64)) // FW >= 1.20
kb->handles[3] = device;
else
printf("Warning: Got unknown handle (I: %d, O: %d, F: %d)\n", (int)input, (int)output, (int)feature);
// If all handles have been set up, finish initializing the keyboard
if(kb->handles[0] && kb->handles[1] && kb->handles[2]
&& (kb->handles[3] || !IS_RGB(idvendor, idproduct)))
openusb(kb, (short)idvendor, (short)idproduct);
pthread_mutex_unlock(&kblistmutex);
}
void* udevmain(void* context){
// Enumerate all currently connected devices
udevenum();
if(connectstatus & 2)
// If a device failed to connect, enumerate again to make sure we reconnect it (if possible)
udevenum();
// Done scanning. Enter a loop to poll for device updates
struct udev_monitor* monitor = udev_monitor_new_from_netlink(udev, "udev");
udev_monitor_filter_add_match_subsystem_devtype(monitor, "usb", 0);
udev_monitor_enable_receiving(monitor);
// Get an fd for the monitor
int fd = udev_monitor_get_fd(monitor);
fd_set fds;
while(udev){
FD_ZERO(&fds);
FD_SET(fd, &fds);
// Block until an event is read
if(select(fd + 1, &fds, 0, 0, 0) > 0 && FD_ISSET(fd, &fds)){
struct udev_device* dev = udev_monitor_receive_device(monitor);
if(dev){
const char* action = udev_device_get_action(dev);
if(action && !strcmp(action, "add")){
// Device added. Check vendor and product ID and add the device if it matches.
const char* vendor = udev_device_get_sysattr_value(dev, "idVendor");
if(vendor && !strcmp(vendor, V_CORSAIR_STR)){
const char* product = udev_device_get_sysattr_value(dev, "idProduct");
if(product && !strcmp(product, P_K70_STR)){
pthread_mutex_lock(&kblistmutex);
openusb(dev, 70);
pthread_mutex_unlock(&kblistmutex);
} else if(product && !strcmp(product, P_K95_STR)){
pthread_mutex_lock(&kblistmutex);
openusb(dev, 95);
pthread_mutex_unlock(&kblistmutex);
} else
// Free the device if it wasn't used
udev_device_unref(dev);
} else
udev_device_unref(dev);
// Wait a little bit and then re-enumerate devices. Sometimes the keyboard doesn't get picked up right away.
usleep(100000);
connectstatus = 0;
udevenum();
if(connectstatus & 2)
udevenum();
} else if(!strcmp(action, "remove")){
// Device removed. Look for it in our list of keyboards
pthread_mutex_lock(&kblistmutex);
const char* path = udev_device_get_syspath(dev);
for(int i = 1; i < DEV_MAX; i++){
if(keyboard[i].udev && !strcmp(path, udev_device_get_syspath(keyboard[i].udev))){
pthread_mutex_lock(&keyboard[i].mutex);
closeusb(i);
break;
}
}
pthread_mutex_unlock(&kblistmutex);
}
}
}
}
udev_monitor_unref(monitor);
return 0;
}
void usbadd(void* context, IOReturn result, void* sender, IOHIDDeviceRef device){
if(CFGetTypeID(device) != IOHIDDeviceGetTypeID())
return;
// Get the model and serial number
long idproduct = usbgetvalue(device, CFSTR(kIOHIDProductIDKey));
int model;
if(idproduct == P_K70)
model = 70;
else if(idproduct == P_K95)
model = 95;
else
return;
char serial[SERIAL_LEN];
CFTypeRef cfserial = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDSerialNumberKey));
if(!cfserial || CFGetTypeID(cfserial) != CFStringGetTypeID() || !CFStringGetCString(cfserial, serial, SERIAL_LEN, kCFStringEncodingASCII))
return;
pthread_mutex_lock(&kblistmutex);
// A single keyboard will generate 4 match events, so each handle has to be added to the board separately.
// Look for any partially-set up boards matching this serial number
int index = -1;
for(int i = 1; i < DEV_MAX; i++){
if(!strcmp(keyboard[i].profile.serial, serial) && keyboard[i].handle == INCOMPLETE){
index = i;
break;
}
}
// If none was found, grab the first free device
if(index == -1){
for(int i = 1; i < DEV_MAX; i++){
if(!keyboard[i].handle){
// Mark the device as in use and print out a message
index = i;
keyboard[i].handle = INCOMPLETE;
keyboard[i].model = model;
strcpy(keyboard[i].profile.serial, serial);
CFTypeRef cfname = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductKey));
if(cfname && CFGetTypeID(cfname) == CFStringGetTypeID())
CFStringGetCString(cfname, keyboard[i].name, SERIAL_LEN, kCFStringEncodingASCII);
printf("Connecting %s (S/N: %s)\n", keyboard[i].name, keyboard[i].profile.serial);
break;
}
}
}
if(index == -1){
printf("Error: No free devices\n");
pthread_mutex_unlock(&kblistmutex);
return;
}
usbdevice* kb = keyboard + index;
// There's no direct way to tell which of the four handles this is, but there's a workaround
// Each handle has a unique maximum packet size combination, so use that to place them
long input = usbgetvalue(device, CFSTR(kIOHIDMaxInputReportSizeKey));
long output = usbgetvalue(device, CFSTR(kIOHIDMaxOutputReportSizeKey));
long feature = usbgetvalue(device, CFSTR(kIOHIDMaxFeatureReportSizeKey));
// Handle 0 is unused
if(input == 8 && output == 1 && feature == 0)
kb->handles[0] = device;
// Handle 1 is for HID inputs (ignored by ckb)
else if(input == 21 && output == 1 && feature == 1)
kb->handles[1] = device;
// Handle 2 is for Corsair inputs
else if(input == 64 && output == 0 && feature == 0)
kb->handles[2] = device;
// Handle 3 is for controlling the device
else if(input == 0 && output == 0 && feature == 64)
kb->handles[3] = device;
else
printf("Warning: Got unknown handle (I: %d, O: %d, F: %d)\n", (int)input, (int)output, (int)feature);
// If all handles have been set up, finish initializing the keyboard
if(kb->handles[0] && kb->handles[1] && kb->handles[2] && kb->handles[3])
openusb(kb);
pthread_mutex_unlock(&kblistmutex);
}