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USB: autosuspend for cdc-acm

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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>
This commit is contained in:
Oliver Neukum 2007-10-12 17:24:28 +02:00 • committed by Greg Kroah-Hartman
parent eedffd12e0
commit 1365baf724
2 changed files with 79 additions and 15 deletions
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2
drivers/usb/class/cdc-acm.h
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@ -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