This patch (as1595) improves the usbhid driver by using the
HID_SUSPENDED bitflag to indicate that the device is suspended rather
than using HID_REPORTED_IDLE, which the patch removes.
Since HID_SUSPENDED was not being used for anything, and since the
name "HID_REPORTED_IDLE" doesn't convey much meaning, the end result
is easier to read and understand.
Signed-off-by: Alan Stern <st...@rowland.harvard.edu>
CC: Oliver Neukum <oli...@neukum.org>
---
drivers/hid/usbhid/hid-core.c | 14 +++++++-------
drivers/hid/usbhid/usbhid.h | 1 -
2 files changed, 7 insertions(+), 8 deletions(-)
Index: usb-3.5/drivers/hid/usbhid/usbhid.h
===================================================================
--- usb-3.5.orig/drivers/hid/usbhid/usbhid.h
+++ usb-3.5/drivers/hid/usbhid/usbhid.h
@@ -53,7 +53,6 @@ struct usb_interface *usbhid_find_interf
#define HID_CLEAR_HALT 6
#define HID_DISCONNECTED 7
#define HID_STARTED 8
-#define HID_REPORTED_IDLE 9
#define HID_KEYS_PRESSED 10
#define HID_NO_BANDWIDTH 11
Index: usb-3.5/drivers/hid/usbhid/hid-core.c
===================================================================
--- usb-3.5.orig/drivers/hid/usbhid/hid-core.c
+++ usb-3.5/drivers/hid/usbhid/hid-core.c
@@ -84,7 +84,7 @@ static int hid_start_in(struct hid_devic
spin_lock_irqsave(&usbhid->lock, flags);
if (hid->open > 0 &&
!test_bit(HID_DISCONNECTED, &usbhid->iofl) &&
- !test_bit(HID_REPORTED_IDLE, &usbhid->iofl) &&
+ !test_bit(HID_SUSPENDED, &usbhid->iofl) &&
!test_and_set_bit(HID_IN_RUNNING, &usbhid->iofl)) {
rc = usb_submit_urb(usbhid->urbin, GFP_ATOMIC);
if (rc != 0) {
@@ -222,7 +222,7 @@ static int usbhid_restart_out_queue(stru
* If still suspended, don't submit. Submission will
* occur if/when resume drains the queue.
*/
- if (test_bit(HID_REPORTED_IDLE, &usbhid->iofl)) {
+ if (test_bit(HID_SUSPENDED, &usbhid->iofl)) {
usb_autopm_put_interface_no_suspend(usbhid->intf);
return r;
}
@@ -260,7 +260,7 @@ static int usbhid_restart_ctrl_queue(str
* If still suspended, don't submit. Submission will
* occur if/when resume drains the queue.
*/
- if (test_bit(HID_REPORTED_IDLE, &usbhid->iofl)) {
+ if (test_bit(HID_SUSPENDED, &usbhid->iofl)) {
usb_autopm_put_interface_no_suspend(usbhid->intf);
return r;
}
@@ -1475,7 +1475,7 @@ static int hid_suspend(struct usb_interf
&& !test_bit(HID_KEYS_PRESSED, &usbhid->iofl)
&& (!usbhid->ledcount || ignoreled))
{
- set_bit(HID_REPORTED_IDLE, &usbhid->iofl);
+ set_bit(HID_SUSPENDED, &usbhid->iofl);
spin_unlock_irq(&usbhid->lock);
if (hid->driver && hid->driver->suspend) {
status = hid->driver->suspend(hid, message);
@@ -1495,7 +1495,7 @@ static int hid_suspend(struct usb_interf
return status;
}
spin_lock_irq(&usbhid->lock);
- set_bit(HID_REPORTED_IDLE, &usbhid->iofl);
+ set_bit(HID_SUSPENDED, &usbhid->iofl);
spin_unlock_irq(&usbhid->lock);
if (usbhid_wait_io(hid) < 0)
return -EIO;
@@ -1525,7 +1525,7 @@ static int hid_resume(struct usb_interfa
if (!test_bit(HID_STARTED, &usbhid->iofl))
return 0;
- clear_bit(HID_REPORTED_IDLE, &usbhid->iofl);
+ clear_bit(HID_SUSPENDED, &usbhid->iofl);
usbhid_mark_busy(usbhid);
if (test_bit(HID_CLEAR_HALT, &usbhid->iofl) ||
@@ -1552,7 +1552,7 @@ static int hid_reset_resume(struct usb_i
struct usbhid_device *usbhid = hid->driver_data;
int status;
- clear_bit(HID_REPORTED_IDLE, &usbhid->iofl);
+ clear_bit(HID_SUSPENDED, &usbhid->iofl);
status = hid_post_reset(intf);
if (status >= 0 && hid->driver && hid->driver->reset_resume) {
int ret = hid->driver->reset_resume(hid);
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
