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cdc_acm: add reset_resume method 

Add reset resume logic to the cdc acm driver

Signed-off-by: Francesco Lavra <francescolavra@interfree.it>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hifive-unleashed-5.1
Francesco Lavra 2009-12-08 09:54:11 +01:00 committed by Greg Kroah-Hartman
parent af2ac1a091
commit a91b0c5022
1 changed files with 18 additions and 0 deletions
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18
drivers/usb/class/cdc-acm.c
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@ -1460,6 +1460,23 @@ err_out:
return rv;
}
static int acm_reset_resume(struct usb_interface *intf)
{
struct acm *acm = usb_get_intfdata(intf);
struct tty_struct *tty;
mutex_lock(&acm->mutex);
if (acm->port.count) {
tty = tty_port_tty_get(&acm->port);
if (tty) {
tty_hangup(tty);
tty_kref_put(tty);
}
}
mutex_unlock(&acm->mutex);
return acm_resume(intf);
}
#endif /* CONFIG_PM */
#define NOKIA_PCSUITE_ACM_INFO(x) \
@ -1602,6 +1619,7 @@ static struct usb_driver acm_driver = {
#ifdef CONFIG_PM
.suspend = acm_suspend,
.resume = acm_resume,
.reset_resume = acm_reset_resume,
#endif
.id_table = acm_ids,
#ifdef CONFIG_PM