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-rw-r--r--include/linux/cdrom.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
index 1c1f5efffd64..141a7460763b 100644
--- a/include/linux/cdrom.h
+++ b/include/linux/cdrom.h
@@ -452,6 +452,7 @@ struct cdrom_generic_command
#define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
#define GPCMD_READ_10 0x28
#define GPCMD_READ_12 0xa8
+#define GPCMD_READ_BUFFER_CAPACITY 0x5c
#define GPCMD_READ_CDVD_CAPACITY 0x25
#define GPCMD_READ_CD 0xbe
#define GPCMD_READ_CD_MSF 0xb9