/dev/usb/ven
Description
This device is used to communicate with the USB camera provided with the game "Your Shape". Not much information is known at this time.
It is implemented by a module (USB_VEN) in IOS58. It appears to be able to generically address devices via OHC1 or EHCI, by way of ioctl calls to /dev/usb/usb. It is accessed via several ioctl/ioctlvs. This information is incomplete, please fill it in when possible.
All buffers must be in MEM2 (addr > 0x10000000) and aligned to a 32-byte boundary. For all of the ioctlvs, the first buffer must be 64 bytes long.
Ioctls
| Ioctlv | Parameters | Function | Notes |
|---|---|---|---|
| 0 | 0 / 0x20 (ioctl) | ven_open | |
| 1 | 0 / 0x180 (ioctl) | ven_attach_complete_callback | |
| 2 | 0 / 0 (ioctl) | ven_close | |
| 3 | 0x20 / 0xC0 (ioctl) | ? | calls /dev/usb/usb ioctl 2 |
| 4 | 0x20 / 0 (ioctl) | ? | |
| 5 | 0x20 / 0 (ioctl) | ? | indirectly calls /dev/usb/usb ioctl 1 |
| 6 | 0 / 0 (ioctl) | ? | calls /dev/usb/usb ioctl 1 |
| 7 | 0x20 / 0 (ioctl) | ven_set_alt_setting | calls /dev/usb/usb ioctl 5 and/or 0x11 |
| 8 | 0x20 / ? (ioctl) | ? | calls /dev/usb/usb ioctl 3 |
| 0x10 | 0x20 / 0 (ioctl) | ven_suspend_resume, ven_attach_suspend_callback, ven_attach_get_device_params_callback | calls /dev/usb/usb ioctl 4 |
| 0x11 | 0x20 / 0 (ioctl) | ven_cancel_endpoint | calls /dev/usb/usb ioctl 0x10 |
| 0x12 | 1 in / 1 io, or 2 in / 0 io? (ioctlv) | ven_ctrl | calls /dev/usb/usb ioctl 0x11 |
| 0x13 | 1/1 or 2/0? (ioctlv) | ven_intr | calls /dev/usb/usb ioctl 0x12 |
| 0x14 | 2/2 or 3/1 (ioctlv) | ven_isoc | calls /dev/usb/usb ioctl 0x13 |
| 0x15 | ? (ioctlv) | ven_? | calls /dev/usb/usb ioctl 0x14 |