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Commit 74bccc9b authored by Ladislav Michl's avatar Ladislav Michl Committed by Greg Kroah-Hartman
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cdc-acm: store in and out pipes in acm structure 



Clearing stall needs pipe descriptor, store it in acm structure.

Signed-off-by: default avatarLadislav Michl <ladis@linux-mips.org>
Acked-by: default avatarOliver Neukum <oneukum@suse.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent ba8c931d

drivers/usb/class/cdc-acm.c

+17 −16
Original line number Diff line number Diff line
@@ -1338,8 +1338,16 @@ static int acm_probe(struct usb_interface *intf, 
	spin_lock_init(&acm->read_lock);

	mutex_init(&acm->mutex);

	acm->is_int_ep = usb_endpoint_xfer_int(epread);

	if (acm->is_int_ep)

	if (acm->is_int_ep) {

		acm->bInterval = epread->bInterval;

		acm->in = usb_rcvintpipe(usb_dev, epread->bEndpointAddress);

	} else {

		acm->in = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress);

	}

	if (usb_endpoint_xfer_int(epwrite))

		acm->out = usb_sndintpipe(usb_dev, epwrite->bEndpointAddress);

	else

		acm->out = usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress);

	tty_port_init(&acm->port);

	acm->port.ops = &acm_port_ops;

	init_usb_anchor(&acm->delayed);
@@ -1374,20 +1382,15 @@ static int acm_probe(struct usb_interface *intf, 


		urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;

		urb->transfer_dma = rb->dma;

		if (acm->is_int_ep) {

			usb_fill_int_urb(urb, acm->dev,

					 usb_rcvintpipe(usb_dev, epread->bEndpointAddress),

					 rb->base,

		if (acm->is_int_ep)

			usb_fill_int_urb(urb, acm->dev, acm->in, rb->base,

					 acm->readsize,

					 acm_read_bulk_callback, rb,

					 acm->bInterval);

		} else {

			usb_fill_bulk_urb(urb, acm->dev,

					  usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress),

					  rb->base,

		else

			usb_fill_bulk_urb(urb, acm->dev, acm->in, rb->base,

					  acm->readsize,

					  acm_read_bulk_callback, rb);

		}



		acm->read_urbs[i] = urb;

		__set_bit(i, &acm->read_urbs_free);
@@ -1400,12 +1403,10 @@ static int acm_probe(struct usb_interface *intf, 
			goto alloc_fail7;



		if (usb_endpoint_xfer_int(epwrite))

			usb_fill_int_urb(snd->urb, usb_dev,

				usb_sndintpipe(usb_dev, epwrite->bEndpointAddress),

			usb_fill_int_urb(snd->urb, usb_dev, acm->out,

				NULL, acm->writesize, acm_write_bulk, snd, epwrite->bInterval);

		else

			usb_fill_bulk_urb(snd->urb, usb_dev,

				usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress),

			usb_fill_bulk_urb(snd->urb, usb_dev, acm->out,

				NULL, acm->writesize, acm_write_bulk, snd);

		snd->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;

		if (quirks & SEND_ZERO_PACKET)
@@ -1477,8 +1478,8 @@ static int acm_probe(struct usb_interface *intf, 
	}



	if (quirks & CLEAR_HALT_CONDITIONS) {

		usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress));

		usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress));

		usb_clear_halt(usb_dev, acm->in);

		usb_clear_halt(usb_dev, acm->out);

	}



	return 0;

drivers/usb/class/cdc-acm.h

+1 −0
Original line number Diff line number Diff line
@@ -83,6 +83,7 @@ struct acm { 
	struct usb_device *dev;				/* the corresponding usb device */

	struct usb_interface *control;			/* control interface */

	struct usb_interface *data;			/* data interface */

	unsigned in, out;				/* i/o pipes */

	struct tty_port port;			 	/* our tty port data */

	struct urb *ctrlurb;				/* urbs */

	u8 *ctrl_buffer;				/* buffers of urbs */