diff options
Diffstat (limited to 'drivers/input/touchscreen/usbtouchscreen.c')
-rw-r--r-- | drivers/input/touchscreen/usbtouchscreen.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c index 99330bbdbac7..567d57215c28 100644 --- a/drivers/input/touchscreen/usbtouchscreen.c +++ b/drivers/input/touchscreen/usbtouchscreen.c @@ -811,12 +811,11 @@ static int nexio_init(struct usbtouch_usb *usbtouch) priv = usbtouch->priv; - priv->ack_buf = kmalloc(sizeof(nexio_ack_pkt), GFP_KERNEL); + priv->ack_buf = kmemdup(nexio_ack_pkt, sizeof(nexio_ack_pkt), + GFP_KERNEL); if (!priv->ack_buf) goto err_priv; - memcpy(priv->ack_buf, nexio_ack_pkt, sizeof(nexio_ack_pkt)); - priv->ack = usb_alloc_urb(0, GFP_KERNEL); if (!priv->ack) { dbg("%s - usb_alloc_urb failed: usbtouch->ack", __func__); @@ -858,6 +857,11 @@ static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt) if ((pkt[0] & 0xe0) != 0xe0) return 0; + if (be16_to_cpu(packet->data_len) > 0xff) + packet->data_len = cpu_to_be16(be16_to_cpu(packet->data_len) - 0x100); + if (be16_to_cpu(packet->x_len) > 0xff) + packet->x_len = cpu_to_be16(be16_to_cpu(packet->x_len) - 0x80); + /* send ACK */ ret = usb_submit_urb(priv->ack, GFP_ATOMIC); @@ -1113,7 +1117,7 @@ static struct usbtouch_device_info usbtouch_dev_info[] = { #ifdef CONFIG_TOUCHSCREEN_USB_NEXIO [DEVTYPE_NEXIO] = { - .rept_size = 128, + .rept_size = 1024, .irq_always = true, .read_data = nexio_read_data, .init = nexio_init, @@ -1291,8 +1295,8 @@ static void usbtouch_close(struct input_dev *input) static void usbtouch_free_buffers(struct usb_device *udev, struct usbtouch_usb *usbtouch) { - usb_buffer_free(udev, usbtouch->type->rept_size, - usbtouch->data, usbtouch->data_dma); + usb_free_coherent(udev, usbtouch->type->rept_size, + usbtouch->data, usbtouch->data_dma); kfree(usbtouch->buffer); } @@ -1336,8 +1340,8 @@ static int usbtouch_probe(struct usb_interface *intf, if (!type->process_pkt) type->process_pkt = usbtouch_process_pkt; - usbtouch->data = usb_buffer_alloc(udev, type->rept_size, - GFP_KERNEL, &usbtouch->data_dma); + usbtouch->data = usb_alloc_coherent(udev, type->rept_size, + GFP_KERNEL, &usbtouch->data_dma); if (!usbtouch->data) goto out_free; |