X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=Documentation%2Fdvb%2Fbt8xx.txt;h=b7b1d1b1da469a527eb4940ce86b9834deb8a8ee;hb=bcd5d1d978c70841d68c7a3725269df9d5a4abf8;hp=ecb47adda0638b9ac4a79ddc7ae7537801edf24a;hpb=efffbeee5bc4168059683714b300d307f5193d69;p=firefly-linux-kernel-4.4.55.git

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,