FatFS Multi Logic Device Support with single SPI Bus and Multiple CS pins

Hello..

I have a few problems, can you help me?

I am using FatFS on stm32f103RB MCU. I have a Single SPI bus and 2 CS pins for 2 SD Card.

used STM32CUBEIDE. No problem when I use 1 SD card and 1 CS pin. But Problem occurs when I use 2 SD Cards. Problem is SD Card 2 not mounting

DSTATUS USER_initialize (
	BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
 /* USER CODE BEGIN INIT */
	return SD_disk_initialize(pdrv);
 /* USER CODE END INIT */
}

I am using the "pdrv" parameter here for CS pin control. But "pdrv" parameter allway 0. For this reason, SD Card 0 remains selected.

I mount like this:

FATFS fs0,fs1; // file systems
FIL fil0,fil1; // Files
 
// mount the device with fs
 fresult = f_mount(&fs0, "0:/", 1);
 fresult = f_mount(&fs1, "1:/", 1);
 
 // create files
 fresult = f_open(&fil0, "0:/test_file_for_sd0.txt", FA_OPEN_ALWAYS | FA_READ | FA_WRITE);
 fresult = f_open(&fil1, "1:/test_file_for_sd1.txt", FA_OPEN_ALWAYS | FA_READ | FA_WRITE);
 
 // Write text
 f_puts("Test DATA to SD 0", &fil0);
 f_puts("Test DATA to SD 1", &fil1);
 
 // Close files
 fresult = f_close(&fil0);
 fresult = f_close(&fil1);

my FatFS library parameters :

I will be very happy if you can help :)

Thanks..