Fisher Grubb <fisher.grubb <at> gmail.com> writes:
Hi all, My name is Fisher Grubb, I have an ATI (now AMD) theatre 750 HD based TV tuner USB stick. I don't think this ATI chipset is supported by linuxTV and have had no joy search google as others also hit a dead end.
Hello, I'm working on writing a partial userspace driver for this device from traffic dumps presently. I believe that it supports / performs similar functions to the rtl-sdr project, but with better specifications (minus the great tuner range of the E4000). See https://github.com/roysjosh/tvw-sdr for current progress. I suspect it can send 8MHz at 12 bits resolution (it sends roughly 125Mbps through the USB interface when listening to an FM station). Currently, my code initializes the T507 and uploads the firmware blob(s) and all register readouts match. Also, my code does it in under 2 seconds (including a 1 second sleep after the 2nd blob upload) compared to the over 45 seconds the closed driver needs. I can reach the TDA18271 through an I2C bridge, but I don't configure it yet. I'm considering how to use existing code rather than write my own from scratch, as much code already exists (as was mentioned already). I would love some help, especially from people who are able to safely RE without legal issues. Thanks, Josh -- 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
