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Stop prepending a zero byte to the input of hid_write()

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hid_write() expects a report ID in the first byte.  The 0x11 and 0x12
values sent as the first byte of commands are consistent with report
IDs published in the keyboard's USB descriptors.

This change was motivated by commands not working reliably using
hidapi on macOS with a G Pro keyboard.
This commit is contained in:
Dan Eble 2019-09-30 11:16:37 -04:00
parent 3c42eee3e8
commit d438ec2e3a
1 changed files with 0 additions and 1 deletions
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src/classes/Keyboard.cpp
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@ -798,7 +798,6 @@ bool LedKeyboard::sendDataInternal(byte_buffer_t &data) {
if (data.size() > 0) {
#if defined(hidapi)
if (! open(currentDevice.vendorID, currentDevice.productID, currentDevice.serialNumber)) return false;
data.insert(data.begin(), 0x00);
if (hid_write(m_hidHandle, const_cast<unsigned char*>(data.data()), data.size()) < 0) {
std::cout<<"Error: Can not write to hidraw, try with the libusb version"<<std::endl;
return false;