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code cleanup

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This commit is contained in:
Martin Brodbeck 2018-08-06 10:00:22 +02:00
parent f71f257eb0
commit 77040e9f27
1 changed files with 6 additions and 6 deletions
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12
src/printer/posprinter.cpp
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@ -44,16 +44,16 @@ PosPrinter::PosPrinter()
}
if (libusb_kernel_driver_active(devicePtr_, 0) == 1) { // find out if kernel driver is attached
std::cout << "Kernel Driver Active" << std::endl;
std::cout << "Kernel driver active" << std::endl;
if (libusb_detach_kernel_driver(devicePtr_, 0) == 0) // detach it
std::cout << "Kernel Driver Detached!" << std::endl;
std::cout << "Kernel driver detached!" << std::endl;
}
retValue = libusb_claim_interface(
devicePtr_, 0); // claim interface 0 (the first) of device (mine had jsut 1)
if (retValue < 0) {
std::cout << "Cannot Claim Interface" << std::endl;
throw std::runtime_error("Cannot claim interface");
std::cout << "Cannot claim printer interface" << std::endl;
throw std::runtime_error("Cannot claim printer interface");
}
libusb_free_device_list(devList, 1);
@ -64,9 +64,9 @@ PosPrinter::~PosPrinter()
int retValue;
retValue = libusb_release_interface(devicePtr_, 0); // release the claimed interface
if (retValue != 0) {
std::cout << "Cannot Release Interface" << std::endl;
std::cout << "Cannot release printer interface" << std::endl;
} else {
std::cout << "Released Interface" << std::endl;
std::cout << "Printer interface released" << std::endl;
}
libusb_close(devicePtr_); // close the device we opened