Which DVB stick have an Hardware filter
To find out if the device can do hardware ip filtering, you have to search if the variable caps contains DVB_USB_ADAP_HAS_PID_FILTER in the description of the device, in the source code of the module, in kernelsourcedir/drivers/media/dvb/dvb-usb/
DVB T sticks with hardware filter (2.6.28 kernel)
pid_filter_count = 32,
"DiBcom USB2.0 DVB-T reference design (MOD3000P)",
"Artec T1 USB2.0 TVBOX (please check the warm ID)",
"LITE-ON USB2.0 DVB-T Tuner",
/* Also rebranded as Intuix S800, Toshiba */
"MSI Digivox Mini SL",
"GRAND - USB2.0 DVB-T adapter",
"Artec T14 - USB2.0 DVB-T",
"Leadtek - USB2.0 Winfast DTV dongle",
"Afatech AF9015 DVB-T USB2.0 stick",
"Leadtek WinFast DTV Dongle Gold",
"Pinnacle PCTV 71e",
"KWorld PlusTV Dual DVB-T Stick (DVB-T 399U)",
"DigitalNow TinyTwin DVB-T Receiver",
"TwinHan AzureWave AD-TU700(704J)",
"TerraTec Cinergy T USB XE",
"KWorld PlusTV Dual DVB-T PCI (DVB-T PC160-2T)",
"AVerMedia AVerTV DVB-T Volar X",
"Xtensions XD-380",
"MSI DIGIVOX Duo",
"Fujitsu-Siemens Slim Mobile USB DVB-T",
"Telestar Starstick 2",
"AVerMedia A309",
"MSI Digi VOX mini III",
"AVerMedia AverTV DVB-T USB 2.0 (A800)",
"Afatech DVB-T USB1.1 stick",
"TerraTec Cinergy T USB XE",
"Ansonic DVB-T USB1.1 stick",
"Hauppauge WinTV-NOVA-T usb2",
"MSI Mega Sky 580 DVB-T USB2.0",
pid_filter_count = 15,
"WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U)",
"WideView WT-220U PenType Receiver (Typhoon/Freecom)",
"WideView WT-220U PenType Receiver (Typhoon/Freecom)",
"WideView WT-220U PenType Receiver (based on ZL353)",
pid_filter_count = 16,
"AVerMedia AverTV DVBT USB1.1",
"Compro Videomate DVB-U2000 - DVB-T USB1.1 (please confirm to linux-dvb)",
"DiBcom USB1.1 DVB-T reference design (MOD3000)",
"KWorld V-Stream XPERT DTV - DVB-T USB1.1",
"Grandtec USB1.1 DVB-T",
"TwinhanDTV USB-Ter USB1.1 / Magic Box I / HAMA USB1.1 DVB-T device",
"Artec T1 USB1.1 TVBOX with AN2135",
"VideoWalker DVB-T USB",
"Artec T1 USB1.1 TVBOX with AN2235",
"Artec T1 USB1.1 TVBOX with AN2235 (faulty USB IDs)",
"KWorld/ADSTech Instant DVB-T USB2.0",
"KWorld Xpert DVB-T USB2.0",
"Artec T1 USB2.0",
pid_filter_count = 8,
"MSI DIGI VOX mini II DVB-T USB2.0",
"LifeView TV Walker Twin DVB-T USB2.0",