From 1365baf7249bb2d05e774e7681237b8e86f5007a Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oliver@neukum.org>
Date: Fri, 12 Oct 2007 17:24:28 +0200
Subject: USB: autosuspend for cdc-acm
Here we go. This patch implements suspend/resume and autosuspend
for the CDC ACM driver.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/usb/class/cdc-acm.h | 2 ++
1 file changed, 2 insertions(+)
(limited to 'drivers/usb/class/cdc-acm.h')
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index 09f7765dbf8..8df6a57dcf9 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -107,6 +107,7 @@ struct acm {
int write_used; /* number of non-empty write buffers */
int write_ready; /* write urb is not running */
spinlock_t write_lock;
+ struct mutex mutex;
struct usb_cdc_line_coding line; /* bits, stop, parity */
struct work_struct work; /* work queue entry for line discipline waking up */
struct tasklet_struct urb_task; /* rx processing */
@@ -120,6 +121,7 @@ struct acm {
unsigned char throttle; /* throttled by tty layer */
unsigned char clocal; /* termios CLOCAL */
unsigned int ctrl_caps; /* control capabilities from the class specific header */
+ unsigned int susp_count; /* number of suspended interfaces */
};
#define CDC_DATA_INTERFACE_TYPE 0x0a
--
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