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-rw-r--r--host/include/linux/usrp_e.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/host/include/linux/usrp_e.h b/host/include/linux/usrp_e.h
index cb62d940d..4c6a5dd89 100644
--- a/host/include/linux/usrp_e.h
+++ b/host/include/linux/usrp_e.h
@@ -65,6 +65,9 @@ struct usrp_e_i2c {
#define USRP_E_I2C_READ _IOWR(USRP_E_IOC_MAGIC, 0x25, struct usrp_e_i2c)
#define USRP_E_I2C_WRITE _IOW(USRP_E_IOC_MAGIC, 0x26, struct usrp_e_i2c)
#define USRP_E_GET_RB_INFO _IOR(USRP_E_IOC_MAGIC, 0x27, struct usrp_e_ring_buffer_size_t)
+#define USRP_E_GET_COMPAT_NUMBER _IO(USRP_E_IOC_MAGIC, 0x28)
+
+#define USRP_E_COMPAT_NUMBER 1
/* Flag defines */
#define RB_USER (1<<0)