1 files changed, 12 insertions, 0 deletions

diff --git a/Documentation/dvb/bt8xx.txt b/Documentation/dvb/bt8xx.txt
index ecb47adda063..b7b1d1b1da46 100644
--- a/Documentation/dvb/bt8xx.txt
+++ b/Documentation/dvb/bt8xx.txt
@@ -78,6 +78,18 @@ Example:
 For a full list of card ID's please see Documentation/video4linux/CARDLIST.bttv.
 In case of further problems please subscribe and send questions to the mailing list: linux-dvb@linuxtv.org.
 
+2c) Probing the cards with broken PCI subsystem ID
+--------------------------------------------------
+There are some TwinHan cards that the EEPROM has become corrupted for some
+reason. The cards do not have correct PCI subsystem ID. But we can force
+probing the cards with broken PCI subsystem ID
+
+        $ echo 109e 0878 $subvendor $subdevice > \
+                /sys/bus/pci/drivers/bt878/new_id
+
+109e: PCI_VENDOR_ID_BROOKTREE
+0878: PCI_DEVICE_ID_BROOKTREE_878
+
 Authors: Richard Walker,
          Jamie Honan,
          Michael Hunold,