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dfu: display error code

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This commit is contained in:
Gwenhael Goavec-Merou
2022-06-14 23:14:01 +02:00
parent 4d69675041
commit 82c17f6a7d
1 changed files with 6 additions and 4 deletions
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src/dfu.cpp
+6 -4
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@@ -162,6 +162,7 @@ DFU::~DFU()
int DFU::open_DFU(int index)
{
struct dfu_dev curr_dfu;
int ret;
if (_vid == 0 || _pid == 0) {
printError("Error: Can't open device without VID/PID");
@@ -178,15 +179,16 @@ int DFU::open_DFU(int index)
printError("Error: fail to open device");
return EXIT_FAILURE;
}
if (libusb_claim_interface(dev_handle, curr_intf) != 0) {
if ((ret = libusb_claim_interface(dev_handle, curr_intf)) != 0) {
libusb_close(dev_handle);
printError("Error: fail to claim interface");
printError("Error: fail to claim interface with error code " + std::to_string(ret));
return EXIT_FAILURE;
}
if (libusb_set_interface_alt_setting(dev_handle, curr_intf, 0) != 0) {
if ((ret = libusb_set_interface_alt_setting(dev_handle, curr_intf, _altsetting)) != 0) {
libusb_release_interface(dev_handle, curr_intf);
libusb_close(dev_handle);
printError("Error: fail to set interface");
printError("Error: fail to set interface " + std::to_string(curr_intf) +
" with error code " + std::to_string(ret));
return EXIT_FAILURE;
}