The PSP does not access the PC. The PC uses a special driver to make a serial connection to the PSP over USB, and then sends data to the PSP when it receives commands. The PSP never actually accesses the files.
I still think the mini HDD thing is nonsense. He's been saying that it both is and is not an SSD. That's fishy enough for me.
It could be nonsense, what needs to happen is he needs to debunk everyone that is saying its fake by posting the steps he did to make this work.
Through his other posts in the forum he has proven that he can make a usb host by using the two chips.
But what I'm leaning to, somewhere along the way it didn't work and he ended up taking the datel hdd that he also had and use the two controller chips and make a cable that interfaced with the memory card slot. That will give a 32gb max size limit.
The psp has to access the pc, through the handshake. The psp requests the file list and the pc sends it. You can browse directories and then you choose a file albeit a cso or mp3 or picture whatever then the pc sends the file.
The communication goes both ways.
What I might have to do is use a seperate usb controller to keep the drive in usb b mode. I'm now working with someone that codes with Linux and we might be able to use linux imbedded within a controller.
With the extra space in the casing for the otg hdd I can put both controller chips inside it. This may end up being a lot easier than I initially thought, or harder.
Time to experiment.