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ArcSoft TotalMedia software with simple interface comes with multiple functions such as Time Shifting, Schedule Recording and Image Capture thus you can keep your favorite shows and scenes on your hard drive. This USB TV tuner brings ATSC and Clear QAM digital TV with high definition up to 1920x1080i to your computer, so you can enjoy your favorite programs peacefully without battling for channels with others. It knows that VID is assigned to Afatech and that is what it displays.Turn your PC or laptop into a fully featured TV and DVR with the KWorld UB435-Q USB TV stick. However, it does have a match for the VID. When lsusb sees the kWorld adapter, it had no match for a VID/PID pair to identify it. Instead if has a list of well known VIDs and associated PIDs. It has no knowledge of what drivers go with what VID/PID pair. Lsusb identifies devices that are attached via USB. If there is no match, as is the case with the kWorld adapter, then nothing else happens. If there is a match, the driver is loaded. When a USB device is inserted, the kernel goes through its list to determine if anything registered to handle the device VID/PID pair. Each kernel driver registers VID/PID pairs of devices that it supports. Together, VID and PID make a unique USB device ID. This number is assinged by the vendor and only has meaning to that vendor. The second number uniquely identifies the product (the PID). In the case of the kWorld 435-Q V3, that "someone else" is Afatech. Due to the cost, most products 'borrow' (with permission) someone else's VID number. These numbers are assigned by the USB-IF organization and costs $3,500 for two years ( ). The first number (the VID) identifies the vendor of the device. USB devices are identified by a VID:PID number combination. Maury Markowitz wrote:None of those three devices appears to be made by Afatech, so why is it identified that way? My device is identified in lsusb as "1b80:e3fc Afatech" em28xx: Registered (Em28xx dvb Extension) extension em2874 #0: DVB extension successfully initialized usb 2-1: DVB: registering adapter 1 frontend 0 (LG Electronics LGDT3305 VSB/QAM Frontend). DVB: registering new adapter (em2874 #0)

i2c i2c-10: tda18212: NXP TDA18212HN successfully identified usbcore: registered new interface driver em28xx em2874 #0: Identified as KWorld USB ATSC TV Stick UB435-Q V3 (card=93) em2874 #0: microcode start address = 0x0004, boot configuration = 0x01 em28xx: New device USB 2875 Device 480 Mbps (1b80:e34c, interface 0, class 0) Code: Select all Linux video capture interface: v2.00