1 files changed, 10 insertions, 0 deletions

diff --git a/sys/dev/cxgbe/t4_ioctl.h b/sys/dev/cxgbe/t4_ioctl.h
index 2a3fa3998ef14..45c2fccb48c2d 100644
--- a/sys/dev/cxgbe/t4_ioctl.h
+++ b/sys/dev/cxgbe/t4_ioctl.h
@@ -49,6 +49,7 @@ enum {
 	T4_GET_SGE_CONTEXT,		/* get SGE context for a queue */
 	T4_LOAD_FW,			/* flash firmware */
 	T4_GET_MEM,			/* read memory */
+	T4_GET_I2C,			/* read from i2c addressible device */
 };
 
 struct t4_reg {
@@ -69,6 +70,14 @@ struct t4_data {
 	uint8_t *data;
 };
 
+struct t4_i2c_data {
+	uint8_t port_id;
+	uint8_t dev_addr;
+	uint8_t offset;
+	uint8_t len;
+	uint8_t data[8];
+};
+
 /*
  * A hardware filter is some valid combination of these.
  */
@@ -224,4 +233,5 @@ struct t4_mem_range {
     struct t4_sge_context)
 #define CHELSIO_T4_LOAD_FW	_IOW('f', T4_LOAD_FW, struct t4_data)
 #define CHELSIO_T4_GET_MEM	_IOW('f', T4_GET_MEM, struct t4_mem_range)
+#define CHELSIO_T4_GET_I2C	_IOWR('f', T4_GET_I2C, struct t4_i2c_data)
 #endif