/*
* Set the Bluetooth adapter Device Class.
*
* Parameters:
* dd: A opened HCI device.
* cls: The new Device Class value.
*
* Returns:
* 0 on success or a negative error code (defined in error.h) on failure.
*/
static int set_device_class(int dd, uint32_t cls)
{
int errsv; /* saved errno */
if (hci_write_class_of_dev(dd, cls, 2000) < 0) {
errsv = errno;
log_ec(errsv, "Can't write HCI Device Class");
return hidc_convert_errno(errsv);
}
return 0;
}
/**
* Spoofs the device class. cls is a string in the format 0xffffff.
*/
int spoof_device_class(int hdev, char *cls) {
int s = hci_open_dev(hdev);
if (s < 0) {
LOGE("Cannot open device hci%d: %s (%d)\n", hdev, strerror(errno), errno);
return errno;
}
uint32_t cod = strtoul(cls, NULL, 16);
if (hci_write_class_of_dev(s, cod, 2000) < 0) {
LOGE("Cannor write class for hci%d: %s(%d)\n", hdev, strerror(errno), errno);
return errno;
}
return 0;
}
/*
* \brief This function writes the device class for a given device number.
*
* \param device_number the device number
* \param devclass the device class to write
*
* \return 0 if successful, -1 otherwise
*/
int bt_write_device_class(int device_number, uint32_t devclass)
{
int ret = 0;
int s = hci_open_dev (device_number);
if(hci_write_class_of_dev(s, devclass, HCI_REQ_TIMEOUT) < 0)
{
ret = -1;
}
close(s);
return ret;
}
bool CBlueZStack::SetServiceClasses(int classes)
{
unsigned char cls[3];
if (hci_read_class_of_dev(m_fd, cls, BLUEZ_TIMEOUT) < 0) {
PERROR("error reading device class");
return false;
}
classes |= cls[1] << 8;
classes |= cls[2];
if (hci_write_class_of_dev(m_fd, classes, BLUEZ_TIMEOUT) < 0) {
PERROR("error writing device class");
return false;
}
return true;
}
