printk format "%4.4s"

Hi, all I have a question about printk format. Can printk format use "%4.4s"? This format is used following source. # drivers/acpi/tables/tbinstal.c ACPI_ERROR((AE_INFO, "Table has invalid signature [%4.4s], must be SSDT, PSDT or OEMx",

printk format %4.4s

Hi, all I have a question about printk format. Can printk format use %4.4s? This format is used following source. # drivers/acpi/tables/tbinstal.c ACPI_ERROR((AE_INFO, Table has invalid signature [%4.4s], must be SSDT, PSDT or OEMx,