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+# Hauppauge WinTV-dualHD DVB
+
+installare in debian 12
+
+    sudo cp dvb-demod-si2168-b40-01.fw  /lib/firmware
+
+poi fare il reboot 
+
+per verificare
+    sudo dmesg | egrep -i '(ivtv|tveeprom|tuner|dualhd|em28xx)'
+
+risposta
+
+[    4.445216] usb 1-1.4: Product: dualHD
+[    8.477194] em28xx 1-1.4:1.0: New device HCW dualHD @ 480 Mbps (2040:8265, interface 0, class 0)
+[    8.477202] em28xx 1-1.4:1.0: DVB interface 0 found: bulk
+[    8.533224] em28xx 1-1.4:1.0: chip ID is em28174
+[    9.720216] em28xx 1-1.4:1.0: EEPROM ID = 26 00 01 00, EEPROM hash = 0xebedc14c
+[    9.720244] em28xx 1-1.4:1.0: EEPROM info:
+[    9.720249] em28xx 1-1.4:1.0: 	microcode start address = 0x0004, boot configuration = 0x01
+[    9.726581] em28xx 1-1.4:1.0: 	AC97 audio (5 sample rates)
+[    9.726600] em28xx 1-1.4:1.0: 	500mA max power
+[    9.726604] em28xx 1-1.4:1.0: 	Table at offset 0x27, strings=0x0e6a, 0x1888, 0x087e
+[    9.783063] em28xx 1-1.4:1.0: Identified as Hauppauge WinTV-dualHD DVB (card=99)
+[    9.789545] tveeprom: Hauppauge model 204209, rev C3I6, serial# 14342482
+[    9.789566] tveeprom: tuner model is SiLabs Si2157 (idx 186, type 4)
+[    9.789571] tveeprom: TV standards PAL(B/G) NTSC(M) PAL(I) SECAM(L/L') PAL(D/D1/K) ATSC/DVB Digital (eeprom 0xfc)
+[    9.789576] tveeprom: audio processor is None (idx 0)
+[    9.789580] tveeprom: has no radio, has IR receiver, has no IR transmitter
+[    9.789591] em28xx 1-1.4:1.0: We currently don't support analog TV or stream capture on dual tuners.
+[    9.789597] em28xx 1-1.4:1.0: dvb set to bulk mode.
+[    9.846783] em28xx 1-1.4:1.0: chip ID is em28174
+[   11.026637] em28xx 1-1.4:1.0: EEPROM ID = 26 00 01 00, EEPROM hash = 0xebedc14c
+[   11.026672] em28xx 1-1.4:1.0: EEPROM info:
+[   11.026679] em28xx 1-1.4:1.0: 	microcode start address = 0x0004, boot configuration = 0x01
+[   11.033200] em28xx 1-1.4:1.0: 	AC97 audio (5 sample rates)
+[   11.033228] em28xx 1-1.4:1.0: 	500mA max power
+[   11.033234] em28xx 1-1.4:1.0: 	Table at offset 0x27, strings=0x0e6a, 0x1888, 0x087e
+[   11.089811] em28xx 1-1.4:1.0: Identified as Hauppauge WinTV-dualHD DVB (card=99)
+[   11.099093] tveeprom: Hauppauge model 204209, rev C3I6, serial# 14342482
+[   11.099122] tveeprom: tuner model is SiLabs Si2157 (idx 186, type 4)
+[   11.099128] tveeprom: TV standards PAL(B/G) NTSC(M) PAL(I) SECAM(L/L') PAL(D/D1/K) ATSC/DVB Digital (eeprom 0xfc)
+[   11.099136] tveeprom: audio processor is None (idx 0)
+[   11.099141] tveeprom: has no radio, has IR receiver, has no IR transmitter
+[   11.099158] em28xx 1-1.4:1.0: dvb ts2 set to bulk mode.
+[   11.300610] usbcore: registered new interface driver em28xx
+[   11.314799] em28xx 1-1.4:1.0: Binding DVB extension
+[   11.331341] em28xx 1-1.4:1.0: DVB: registering adapter 0 frontend 0 (Silicon Labs Si2168)...
+[   11.332559] em28xx 1-1.4:1.0: DVB extension successfully initialized
+[   11.332580] em28xx 1-1.4:1.0: Binding DVB extension
+[   11.346505] em28xx 1-1.4:1.0: DVB: registering adapter 1 frontend 0 (Silicon Labs Si2168)...
+[   11.350233] em28xx 1-1.4:1.0: DVB extension successfully initialized
+[   11.350249] em28xx: Registered (Em28xx dvb Extension) extension
+[   34.250054] em28xx 1-1.4:1.0: DVB: adapter 1 frontend 0 frequency 0 out of range (48000000..870000000)
+[   34.541922] em28xx 1-1.4:1.0: DVB: adapter 0 frontend 0 frequency 0 out of range (48000000..870000000)
+
+
+    sudo lsusb -v -d 2040:8265
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