/** Check whether the sysfs block entry is valid for a DVD device and
* initialise the string data members for the object. We try to get all
* the information we need from sysfs if possible, to avoid unnecessarily
* poking the device, and if that fails we fall back to an SCSI INQUIRY
* command. */
void validateAndInitForDVD()
{
char szVendor[128], szModel[128];
ssize_t cchVendor, cchModel;
int64_t type = RTLinuxSysFsReadIntFile(10, "block/%s/device/type",
mpcszName);
if (type >= 0 && type != TYPE_ROM)
return;
if (type == TYPE_ROM)
{
cchVendor = RTLinuxSysFsReadStrFile(szVendor, sizeof(szVendor),
"block/%s/device/vendor",
mpcszName);
if (cchVendor >= 0)
{
cchModel = RTLinuxSysFsReadStrFile(szModel, sizeof(szModel),
"block/%s/device/model",
mpcszName);
if (cchModel >= 0)
{
misValid = true;
dvdCreateDeviceStrings(szVendor, szModel,
mszDesc, sizeof(mszDesc),
mszUdi, sizeof(mszUdi));
return;
}
}
}
if (!noProbe())
probeAndInitForDVD();
}
/** Check whether the sysfs block entry is valid for a DVD device and
* initialise the string data members for the object. We try to get all
* the information we need from sysfs if possible, to avoid unnecessarily
* poking the device, and if that fails we fall back to an SCSI INQUIRY
* command. */
void validateAndInitForDVD()
{
char szVendor[128], szModel[128];
int64_t type = 0;
int rc = RTLinuxSysFsReadIntFile(10, &type, "block/%s/device/type", mpcszName);
if (RT_SUCCESS(rc) && type != TYPE_ROM)
return;
if (type == TYPE_ROM)
{
rc = RTLinuxSysFsReadStrFile(szVendor, sizeof(szVendor), NULL,
"block/%s/device/vendor", mpcszName);
if (RT_SUCCESS(rc))
{
rc = RTLinuxSysFsReadStrFile(szModel, sizeof(szModel), NULL,
"block/%s/device/model", mpcszName);
if (RT_SUCCESS(rc))
{
misValid = true;
dvdCreateDeviceStrings(szVendor, szModel,
mszDesc, sizeof(mszDesc),
mszUdi, sizeof(mszUdi));
return;
}
}
}
if (!noProbe())
probeAndInitForDVD();
}