Instruction manual

Renesas USB MCU and USB ASSP USB Basic Host and Peripheral firmware
R01AN0512EJ0210 Rev.2.10 Page 38 of 157
Apr 1, 2013
R_usb_pstd_DeviceInformation
Get a USB peripheral’s device state information
Format
void R_usb_pstd_DeviceInformation (USB_UTR_t *ptr, uint16_t *tbl)
Arguments
*ptr Pointer to a USB Transfer Structure
*tbl Pointer to the buffer that the device information is stored.
Return Value
－ －
Description
This function gets USB peripherals device state information. It stores the following information at the address
designated by the argument “tbl”.
[0] : USB device state
[1] : USB transfer speed
[2] : Configuration number used
[3] : Interface number used
[4] : Remote Wakeup Flag
Note
1. Besides above arguments, also set the following members of the USB Transfer Structure before calling this
function.
USB_REGADR_t ipp ：USB register base address
uint16_t ip ：USB IP number
2. Call this function from the user application or class driver.
3. This function is not necessary when using an ANSI IO API.
Example
void usb_smp_task(USB_UTR_t *ptr)
{
uint16_t res[5];
：
/* Get USB Device Information */
R_usb_pstd_DeviceInformation(ptr, (uint16_t *)res);
：
}