[Bluez PATCH v2] input: disconnect intr channel before ctrl channel

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Archie Pusaka <apusaka@xxxxxxxxxxxx>

According to bluetooth HID Profile spec Ver 1.0, section 7.2.2, A
host or device shall always complete the disconnection of the
interrupt channel before disconnecting the control channel.
However, the current implementation disconnects them both
simultaneously.

This patch postpone the disconnection of control channel to the
callback of interrupt watch, which shall be called upon receiving
interrupt channel disconnection response.
---

Changes in v2:
-change socket shut mode to SHUT_WR

 profiles/input/device.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/profiles/input/device.c b/profiles/input/device.c
index d89da2d7c..e2ea459fe 100644
--- a/profiles/input/device.c
+++ b/profiles/input/device.c
@@ -1026,14 +1026,19 @@ static bool is_connected(struct input_device *idev)
 
 static int connection_disconnect(struct input_device *idev, uint32_t flags)
 {
+	int sock;
+
 	if (!is_connected(idev))
 		return -ENOTCONN;
 
-	/* Standard HID disconnect */
-	if (idev->intr_io)
-		g_io_channel_shutdown(idev->intr_io, TRUE, NULL);
-	if (idev->ctrl_io)
-		g_io_channel_shutdown(idev->ctrl_io, TRUE, NULL);
+	/* Standard HID disconnect
+	 * Intr channel must be disconnected before ctrl channel, so only
+	 * disconnect intr here, ctrl is disconnected in intr_watch_cb.
+	 */
+	if (idev->intr_io) {
+		sock = g_io_channel_unix_get_fd(idev->intr_io);
+		shutdown(sock, SHUT_WR);
+	}
 
 	if (idev->uhid)
 		return 0;
-- 
2.27.0.278.ge193c7cf3a9-goog




[Index of Archives]     [Bluez Devel]     [Linux Wireless Networking]     [Linux Wireless Personal Area Networking]     [Linux ATH6KL]     [Linux USB Devel]     [Linux Media Drivers]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Big List of Linux Books]

  Powered by Linux