Has anyone had any success in using the Enter USB TV Box from Enter Multimedia? It comes bundled with software that works in Windows. I have had no luck using it in Ubuntu 10.10.

Update 1 Here is the output from lsusb

Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 003: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 004 Device 002: ID 046d:c312 Logitech, Inc. DeLuxe 250 Keyboard
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 006: ID 1f71:3301
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub 

I can't find the Enter USB TV Box listed in this.

In the dmesg tail command, I found something that seems to be related to the card:

usb 1-5: new high speed USB device using ehci_hcd and address 6
usb 1-5: config 1 interface 0 altsetting 1 bulk endpoint 0x83 has invalid maxpacket 256

Update 2 From Windows I learned that this USB TV tuner uses some chipset from Gadmei corporation. All computer stores in India sell Enter USB TV Box if you ask for an USB TV tuner. No other brand seems to be interested in this market.

Update 3 I learned that this TV tuner is rebranded version of Gadmei UTV302 (USB TV Tuner Box).

Update 4 I tried adding em28xx as the chipset (as suggested by user BOBBO below) for the tuner but that did not work. I went back to my Pinnacle PCTV internal card. I don't think the tuner referred by UbuntuForums (Gadmei UTV 330) and the tuner that I have (Gadmei UTV 302) are the same. My USB tuner is several times bigger. My tuner seems to be a newer device with a newer tuner chip. I will submit details of this device to the LinuxTV developers this weekend.

Update 5 I opened the tuner box and found that it uses a tuner from a Chinese company - Tenas. Model is TNF 8022-DFA.

Update 6 Tuner chip specs (retrived from supplier directory) for Tenas TNF 8022-DFA.

• Supply voltage: true 5V device(low power dissipation)
• Control system: I2C bus control of tuning, address selection
• Tuning system: PLL controlled tuning
• Receiving system: system PAL D/K,IF(Intermediate Frequency): 38MHz
• Receiving channels: full frequency range from channel DS1 (49.75MHz) to channel DS57 (863.25MHz);
• Use Texas Instruments SN761678 IC solution, with mini install size

Update 7

1. Reverse side of the circuit board.
2. Picture of the TV tuner