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4f0a5e854c
Mac --- we abandon autodetection for anything other that FluxEngines as libusb is painfully inconsistent with serial devices.
56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
#include "globals.h"
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#include "flags.h"
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#include "usb.h"
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#include "bytes.h"
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#include "fmt/format.h"
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#include "usbfinder.h"
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#include <libusb.h>
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static const std::string get_serial_number(libusb_device* device, libusb_device_descriptor* desc)
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{
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std::string serial;
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libusb_device_handle* handle;
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if (libusb_open(device, &handle) == 0)
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{
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unsigned char buffer[64];
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libusb_get_string_descriptor_ascii(handle, desc->iSerialNumber, buffer, sizeof(buffer));
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serial = (const char*) buffer;
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libusb_close(handle);
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}
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return serial;
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}
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std::vector<std::unique_ptr<CandidateDevice>> findUsbDevices(uint32_t candidateId)
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{
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int i = libusb_init(NULL);
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if (i < 0)
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Error() << "could not start libusb: " << libusb_strerror((libusb_error) i);
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libusb_device** devices;
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int numdevices = libusb_get_device_list(NULL, &devices);
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if (numdevices < 0)
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Error() << "could not enumerate USB bus: " << libusb_strerror((libusb_error) numdevices);
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std::vector<std::unique_ptr<CandidateDevice>> candidates;
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for (int i=0; i<numdevices; i++)
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{
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std::unique_ptr<CandidateDevice> candidate(new CandidateDevice());
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candidate->device = devices[i];
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(void) libusb_get_device_descriptor(candidate->device, &candidate->desc);
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uint32_t id = (candidate->desc.idVendor << 16) | candidate->desc.idProduct;
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if (id == candidateId)
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{
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libusb_ref_device(candidate->device);
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candidate->id = candidateId;
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candidate->serial = get_serial_number(candidate->device, &candidate->desc);
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candidates.push_back(std::move(candidate));
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}
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}
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libusb_free_device_list(devices, true);
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return candidates;
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}
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