On 4/10/07, Richard Bolkey <[EMAIL PROTECTED]> wrote:
First off, I've never made a patch before, which I guess I better learn, but for now if anyone wants to add the device_type for the Logitech Force 3D Pro Joystick to hid-lgff.c, it's { 0x046d, 0xc286, ff_joystick }.Now for a few follow up questions (this is a whole lot of new stuff, so bear with me). 1) I'm gathering that Logitech keeps their hid reports secret and non-standard, or else I'd just be using the HID PID driver? So, were the values in the reports found in hid_lgff_play discovered through trial and error? How would I find what the report for FF_SPRING should look like?
You can do that by spying on the USB traffic generated by an existing driver. That's what I did. I thought I had managed to identify the report used for springs, but at that point my device died and that's where I stopped.
2) Previous question assumes that is where I should implement the effect since ml->play_effect is referencing that function in ff_memless.c. But it sounded like Anssi was recommending doing a spring->constant conversion akin to what looks like a periodic->rumble conversion in ml_combine_effects?
That's another way of doing it.
Thanks, Rick
