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udev-config-printer.c: don't touch libusb alt setting for Samsung MFPs #408

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udev-config-printer.c: don't touch libusb alt setting for Samsung MFPs #408

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10 changes: 10 additions & 0 deletions udev/udev-configure-printer.c
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Original file line number Diff line number Diff line change
Expand Up @@ -601,6 +601,9 @@ get_ieee1284_id_using_libusb (struct udev_device *dev,
char libusbserial[1024];
char ieee1284_id[1024];
int got = 0;
unsigned long idVendorSamsung, idProductSamsung;
idVendorSamsung = strtoul("04E8", &end, 16);
idProductSamsung = strtoul("3460", &end, 16);

idVendorStr = udev_device_get_sysattr_value (dev, "idVendor");
idProductStr = udev_device_get_sysattr_value (dev, "idProduct");
Expand Down Expand Up @@ -695,6 +698,12 @@ get_ieee1284_id_using_libusb (struct udev_device *dev,
}

m = altptr->bAlternateSetting;
if (idVendor == idVendorSamsung && idProduct == idProductSamsung)
{
syslog (LOG_DEBUG, "skip 'libusb_set_interface_alt_setting' for Samsung ProXpress M3870FD");
}
else
{
if (libusb_set_interface_alt_setting(handle, n, m)
< 0)
{
Expand All @@ -703,6 +712,7 @@ get_ieee1284_id_using_libusb (struct udev_device *dev,
syslog (LOG_DEBUG, "failed set altinterface");
continue;
}
}

memset (ieee1284_id, '\0', sizeof (ieee1284_id));
if (libusb_control_transfer(handle,
Expand Down