diff options
| author | Oliver Neukum <oneukum@suse.de> | 2013-11-20 11:35:34 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-03 10:23:46 -0800 |
| commit | 5a6a62bdb9257aa74ab0ad2b2c8a33b0f9b17ce4 (patch) | |
| tree | c39408f8477c5332d5aaadd0ee9c275eb03f5ffe /drivers/usb/class/cdc-acm.h | |
| parent | 4e065b8bba731af296f963e0608e6ea7d98c044f (diff) | |
cdc-acm: add TIOCMIWAIT
This implements TIOCMIWAIT for TIOCM_DSR, TIOCM_RI and TIOCM_CD
Disconnect is handled as TIOCM_CD or an error.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/class/cdc-acm.h')
| -rw-r--r-- | drivers/usb/class/cdc-acm.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h index 0f76e4af600e..e38dc785808f 100644 --- a/drivers/usb/class/cdc-acm.h +++ b/drivers/usb/class/cdc-acm.h @@ -106,6 +106,9 @@ struct acm { struct work_struct work; /* work queue entry for line discipline waking up */ unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */ unsigned int ctrlout; /* output control lines (DTR, RTS) */ + struct async_icount iocount; /* counters for control line changes */ + struct async_icount oldcount; /* for comparison of counter */ + wait_queue_head_t wioctl; /* for ioctl */ unsigned int writesize; /* max packet size for the output bulk endpoint */ unsigned int readsize,ctrlsize; /* buffer sizes for freeing */ unsigned int minor; /* acm minor number */ |