Plugged in a USB ATSC tuner, has an em28xx bridge along with both a NXP TDA18271HDC2 and a Trident DRX3933J_B2... stenciled on the board is EzTV306_1.2 It however registered as a DVB device with a sharp s921 tuner. [ 208.072748] usb 4-1.3: new high-speed USB device number 3 using ehci-pci [ 208.298601] media: Linux media interface: v0.10 [ 208.312132] Linux video capture interface: v2.00 [ 208.636160] em28xx: New device USB 2875 Device @ 480 Mbps (eb1a:2875, interface 0, class 0) [ 208.636162] em28xx: DVB interface 0 found: isoc [ 208.636222] em28xx: chip ID is em2874 [ 208.715834] em2874 #0: EEPROM ID = 26 40 03 00, EEPROM hash = 0xe0a5bac9 [ 208.715836] em2874 #0: EEPROM info: [ 208.715837] em2874 #0: microcode start address = 0x4004, boot configuration = 0x03 [ 208.739463] em2874 #0: I2S audio, 5 sample rates [ 208.739465] em2874 #0: 500mA max power [ 208.739467] em2874 #0: Table at offset 0x24, strings=0x206a, 0x128a, 0x0000 [ 208.741337] em2874 #0: No sensor detected [ 208.769463] em2874 #0: found i2c device @ 0xa0 on bus 0 [eeprom] [ 208.786096] em2874 #0: Your board has no unique USB ID. [ 208.786106] em2874 #0: A hint were successfully done, based on i2c devicelist hash. [ 208.786110] em2874 #0: This method is not 100% failproof. [ 208.786114] em2874 #0: If the board were missdetected, please email this log to: [ 208.786117] em2874 #0: V4L Mailing List <linux-media@xxxxxxxxxxxxxxx> [ 208.786120] em2874 #0: Board detected as EM2874 Leadership ISDBT [ 208.892731] em2874 #0: Identified as EM2874 Leadership ISDBT (card=77) [ 208.892734] em2874 #0: dvb set to isoc mode. [ 208.893013] usbcore: registered new interface driver em28xx [ 209.067077] em2874 #0: Binding DVB extension [ 209.124284] s921: s921_attach: [ 209.124291] DVB: registering new adapter (em2874 #0) [ 209.124299] usb 4-1.3: DVB: registering adapter 0 frontend 0 (Sharp S921)... [ 209.124819] em2874 #0: DVB extension successfully initialized [ 209.124823] em28xx: Registered (Em28xx dvb Extension) extension -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html