All host-vs-device-related discussions I followed suggested that all handshaking and low level data exchange is done by hardware.
Hello.First of all: can you post what you know about USB in canon? As I read in the forum, no consistent USB knoladge isn't yet gathered.
If the processor is a TMS320DM355 like mentioned in another thread then it should have an onboard usb host controller. Just like my Palm Tungsten E2 (with ARM based cpu) which I have several pieces of software for it to emulate a USB card reader (and it's processor block has built-in USB host), then this should be possible.
Perhaps a search for "USB" in your IDA file might reveal something. I'll look through what I have for the TX-1 tonight and see what I can come up with.
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