本文整理汇总了C++中IOBufferMemoryDescriptor::writeBytes方法的典型用法代码示例。如果您正苦于以下问题：C++ IOBufferMemoryDescriptor::writeBytes方法的具体用法？C++ IOBufferMemoryDescriptor::writeBytes怎么用？C++ IOBufferMemoryDescriptor::writeBytes使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IOBufferMemoryDescriptor的用法示例。
在下文中一共展示了IOBufferMemoryDescriptor::writeBytes方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: QueueWrite
// Queue an asynchronous write on a controller
bool WirelessGamingReceiver::QueueWrite(int index, const void *bytes, UInt32 length)
{
IOBufferMemoryDescriptor *outBuffer;
IOUSBCompletion complete;
IOReturn err;
outBuffer = IOBufferMemoryDescriptor::inTaskWithOptions(kernel_task, 0, length);
if (outBuffer == NULL)
{
// IOLog("send - unable to allocate buffer\n");
return false;
}
outBuffer->writeBytes(0, bytes, length);
complete.target = this;
complete.action = _WriteComplete;
complete.parameter = outBuffer;
err = connections[index].controllerOut->Write(outBuffer, 0, 0, length, &complete);
if (err == kIOReturnSuccess)
return true;
else
{
// IOLog("send - failed to start (0x%.8x)\n",err);
return false;
}
}示例2:
// Returns the HID descriptor for this device
IOReturn Xbox360ControllerClass::newReportDescriptor(IOMemoryDescriptor **descriptor) const
{
IOBufferMemoryDescriptor *buffer = IOBufferMemoryDescriptor::inTaskWithOptions(kernel_task,0,sizeof(HID_360::ReportDescriptor));
if (buffer == NULL) return kIOReturnNoResources;
buffer->writeBytes(0,HID_360::ReportDescriptor,sizeof(HID_360::ReportDescriptor));
*descriptor=buffer;
return kIOReturnSuccess;
}示例3: newReportDescriptor
IOReturn it_unbit_foohid_device::newReportDescriptor(IOMemoryDescriptor **descriptor) const {
IOLog("it_unbit_foohid_device::newReportDescriptor()\n");
IOBufferMemoryDescriptor *buffer = IOBufferMemoryDescriptor::inTaskWithOptions(kernel_task, 0, reportDescriptor_len);
if (buffer == NULL) {
IOLog("OOOOPS");
return kIOReturnNoResources;
}
buffer->writeBytes(0, reportDescriptor, reportDescriptor_len);
*descriptor = buffer;
IOLog("all fine\n");
return kIOReturnSuccess;
}示例4: IOLog
void VoodooI2CHIDDevice::i2c_hid_get_input(OSObject* owner, IOTimerEventSource* sender) {
// IOLog("getting input\n");
if (hid_device->reading)
return;
UInt rsize;
int ret;
rsize = UInt16(ihid->hdesc.wMaxInputLength);
unsigned char* rdesc = (unsigned char *)IOMalloc(rsize);
ret = i2c_hid_command(ihid, &hid_input_cmd, rdesc, rsize);
// IOLog("===Input (%d)===\n", rsize);
// for (int i = 0; i < rsize; i++)
// IOLog("0x%02x ", (UInt8) rdesc[i]);
// IOLog("\n");
int return_size = rdesc[0] | rdesc[1] << 8;
if (return_size == 0) {
/* host or device initiated RESET completed */
// test/clear bit?
hid_device->timerSource->setTimeoutMS(10);
return;
}
if (return_size > rsize) {
IOLog("%s: Incomplete report %d/%d\n", __func__, rsize, return_size);
}
IOBufferMemoryDescriptor *buffer = IOBufferMemoryDescriptor::inTaskWithOptions(kernel_task, 0, return_size);
buffer->writeBytes(0, rdesc + 2, return_size - 2);
IOReturn err = _wrapper->handleReport(buffer, kIOHIDReportTypeInput);
if (err != kIOReturnSuccess)
IOLog("Error handling report: 0x%.8x\n", err);
buffer->release();
IOFree(rdesc, rsize);
hid_device->timerSource->setTimeoutMS(10);
}示例5: IOLog
// Set up an asynchronous write
bool Xbox360Peripheral::QueueWrite(const void *bytes,UInt32 length)
{
IOBufferMemoryDescriptor *outBuffer;
IOUSBCompletion complete;
IOReturn err;
outBuffer=IOBufferMemoryDescriptor::inTaskWithOptions(kernel_task,0,length);
if(outBuffer==NULL) {
IOLog("send - unable to allocate buffer\n");
return false;
}
outBuffer->writeBytes(0,bytes,length);
complete.target=this;
complete.action=WriteCompleteInternal;
complete.parameter=outBuffer;
err=outPipe->Write(outBuffer,0,0,length,&complete);
if(err==kIOReturnSuccess) return true;
else {
IOLog("send - failed to start (0x%.8x)\n",err);
return false;
}
}示例6: IOLog
void VoodooI2CHIDDevice::i2c_hid_get_input(OSObject* owner, IOTimerEventSource* sender) {
// IOLog("getting input\n");
UInt rsize;
int ret;
static unsigned char* rdesc_prev = NULL;
static UInt rsize_prev = 0;
bool new_report = true;
rsize = UInt16(ihid->hdesc.wMaxInputLength);
unsigned char* rdesc = (unsigned char *)IOMalloc(rsize);
ret = i2c_hid_command(ihid, &hid_input_cmd, rdesc, rsize);
// IOLog("===Input (%d)===\n", rsize);
// for (int i = 0; i < rsize; i++)
// IOLog("0x%02x ", (UInt8) rdesc[i]);
// IOLog("\n");
int return_size = rdesc[0] | rdesc[1] << 8;
if (return_size == 0) {
/* host or device initiated RESET completed */
// test/clear bit?
hid_device->timerSource->setTimeoutMS(10);
return;
}
if (return_size > rsize) {
IOLog("%s: Incomplete report %d/%d\n", __func__, rsize, return_size);
}
IOBufferMemoryDescriptor *buffer = IOBufferMemoryDescriptor::inTaskWithOptions(kernel_task, 0, return_size);
buffer->writeBytes(0, rdesc + 2, return_size - 2);
#define FILTER_REPEATED_REPORTS /* Needed on my ASUS/Skylake ELAN1000 */
#ifdef FILTER_REPEATED_REPORTS
/* Compare to previous report */
if (rdesc_prev)
{
/* See if they're different! */
if (rsize == rsize_prev)
{
if (memcmp(rdesc_prev, rdesc, rsize))
{
new_report = true;
} else {
new_report = false;
}
} else {
new_report = true;
}
/* We don't need the previous report anymore */
IOFree(rdesc_prev, rsize_prev);
}
else
{
new_report = true;
}
/* Keep for next comparison */
rdesc_prev = rdesc;
rsize_prev = rsize;
if (new_report)
{
IOReturn err = _wrapper->handleReport(buffer, kIOHIDReportTypeInput);
if (err != kIOReturnSuccess)
IOLog("Error handling report: 0x%.8x\n", err);
}
#else /* non filtered for repeating reports */
IOReturn err = _wrapper->handleReport(buffer, kIOHIDReportTypeInput);
if (err != kIOReturnSuccess)
IOLog("Error handling report: 0x%.8x\n", err);
#endif
buffer->release();
#ifndef FILTER_REPEATED_REPORTS
IOFree(rdesc, rsize);
#endif
hid_device->timerSource->setTimeoutMS(10);
}