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-rw-r--r--include/linux/miscdevice.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
index 3e6deb00fc85..7d0aa718499c 100644
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -70,7 +70,16 @@
#define UHID_MINOR 239
#define USERIO_MINOR 240
#define VHOST_VSOCK_MINOR 241
+#define EISA_EEPROM_MINOR 241
#define RFKILL_MINOR 242
+
+/*
+ * Misc char device minor code space division related to below macro:
+ *
+ * < 255 : Fixed minor code
+ * == 255 : Indicator to request dynamic minor code
+ * > 255 : Dynamic minor code requested, 1048320 minor codes totally.
+ */
#define MISC_DYNAMIC_MINOR 255
struct miscdevice {