[PATCH BlueZ v2] sixaxis: Fix pairing Esperanza EGG109k controller

[Marek Czerski <ma.czerski@gmail.com>]

This change is required for Esperanza EGG109k ps controller clone.
EGG109k looks like PS3 controller but presents itself to the system
as PS4 controller. It does not respond to 0x81 command.
Command 0x12 contains both the device bluetooth address as well as
configured host bluetooth address, so it can be used to query
both. Kernel driver hid-playstation also uses 0x12 command for that.

Manufacturer link:
https://esperanza.pl/esperanza-gamepad-bezprzewodowy-ps3-marine-czarny,176,1701.html
---
 plugins/sixaxis.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/plugins/sixaxis.c b/plugins/sixaxis.c
index 27bc09815..a04a76d39 100644
--- a/plugins/sixaxis.c
+++ b/plugins/sixaxis.c
@@ -39,6 +39,9 @@
 #include "profiles/input/server.h"
 #include "profiles/input/sixaxis.h"
 
+#define DS4_FEATURE_REPORT_PAIRING_INFO		0x12
+#define DS4_FEATURE_REPORT_PAIRING_INFO_SIZE	16
+
 struct authentication_closure {
 	guint auth_id;
 	char *sysfs_path;
@@ -111,12 +114,12 @@ static int sixaxis_get_device_bdaddr(int fd, bdaddr_t *bdaddr)
 
 static int ds4_get_device_bdaddr(int fd, bdaddr_t *bdaddr)
 {
-	uint8_t buf[7];
+	uint8_t buf[DS4_FEATURE_REPORT_PAIRING_INFO_SIZE];
 	int ret;
 
 	memset(buf, 0, sizeof(buf));
 
-	buf[0] = 0x81;
+	buf[0] = DS4_FEATURE_REPORT_PAIRING_INFO;
 
 	ret = ioctl(fd, HIDIOCGFEATURE(sizeof(buf)), buf);
 	if (ret < 0) {
@@ -163,12 +166,12 @@ static int sixaxis_get_central_bdaddr(int fd, bdaddr_t *bdaddr)
 
 static int ds4_get_central_bdaddr(int fd, bdaddr_t *bdaddr)
 {
-	uint8_t buf[16];
+	uint8_t buf[DS4_FEATURE_REPORT_PAIRING_INFO_SIZE];
 	int ret;
 
 	memset(buf, 0, sizeof(buf));
 
-	buf[0] = 0x12;
+	buf[0] = DS4_FEATURE_REPORT_PAIRING_INFO;
 
 	ret = ioctl(fd, HIDIOCGFEATURE(sizeof(buf)), buf);
 	if (ret < 0) {
-- 
2.43.0