Changes

/dev/usb/ven (view source)

Revision as of 16:43, 2 November 2017

35 bytes added , 16:43, 2 November 2017

Line 101: Line 101:

| Set the active alternate setting for a device.

−

Internally, this issues /dev/usb/usb ioctl 2 to get descriptors, loops over all endpoints and calls OHCI0/EHC ioctl 5 if <code>(bmAttributes & 3) == 1</code>. If all ioctls succeed, VEN calls OHCI0/EHC ioctl 0x11 with the device ID, alt setting and bInterfaceNumber (+ other unknown values).

+

Internally, this issues /dev/usb/usb ioctl 2 to get descriptors, loops over all endpoints and calls OHCI0/EHC ioctl 5 if <code>(bmAttributes & 3) == 1</code> (if this is an interrupt endpoint). If all ioctls succeed, VEN calls OHCI0/EHC ioctl 0x11 with the device ID, alt setting and bInterfaceNumber (+ other unknown values).

|-

| 8 || ?

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