Dudley,

On Tue, Dec 09, 2014 at 05:11:42PM +0800, Dudley Du wrote:

Add read baseline function supported for gen5 trackpad device,
it can be used through sysfs baseline interface.
TEST=test on Chromebooks.

Signed-off-by: Dudley Du <redacted>
---

[...]

 	return 0;
 }
 
+static int cyapa_gen5_resume_scanning(struct cyapa *cyapa)
+{
+	u8 cmd[7] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x04 };
+	u8 resp_data[6];
+	int resp_len;
+	int error;
+
+	/* Try to dump all bufferred data before doing command. */

                       ^^^^^^^^^
					   buffered

And there are three more below.

+	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+	resp_len = 6;
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			cmd, 7,
+			resp_data, &resp_len,
+			500, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
+	if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x04))
+		return -EINVAL;
+
+	/* Try to dump all bufferred data when resuming scanning. */
+	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+	return 0;
+}
+
+static int cyapa_gen5_suspend_scanning(struct cyapa *cyapa)
+{
+	u8 cmd[7] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x03 };
+	u8 resp_data[6];
+	int resp_len;
+	int error;
+
+	/* Try to dump all bufferred data before doing command. */
+	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+	resp_len = 6;
+	error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+			cmd, 7,
+			resp_data, &resp_len,
+			500, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
+	if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x03))
+		return -EINVAL;
+
+	/* Try to dump all bufferred data when suspending scanning. */
+	cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+	return 0;
+}
+

[...]

-- 
- Jeremiah Mahler