# Reset MMC card and switch it to SPI mode
echo w400000000095u | i2cspi -b /dev/i2c/1 1

# Poll until the card passes reset and reports ready state
while true; do echo x1 410000000001p8 ffu | i2cspi -b /dev/i2c/1 1; sleep 10; done

# Read OCR
echo x1 7a0000000001ffffffffffffffu | i2cspi -b /dev/i2c/1 1

# Read CSD
echo x1 490000000001 p32 ffu | i2cspi -b /dev/i2c/1 1

# Read CID
echo x1 4a0000000001 p32 ffu | i2cspi -b /dev/i2c/1 1