UBLK_U_CMD_REG_BUF - Linux

Symbol: UBLK_U_CMD_REG_BUF

drivers/block/ublk_drv.c

#define UBLK_CMD_REG_BUF _IOC_NR(UBLK_U_CMD_REG_BUF)

tools/testing/selftests/ublk/kublk.c

.cmd_op = UBLK_U_CMD_REG_BUF,