From f1862e80f76bb21c817e4920abd010077ada0a6a Mon Sep 17 00:00:00 2001 From: "bernard.xiong" Date: Thu, 11 Oct 2012 23:35:42 +0000 Subject: [PATCH] Fixed _class_sof_handler function return value. git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2345 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- components/drivers/usb/usbdevice/class/cdc_vcom.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/components/drivers/usb/usbdevice/class/cdc_vcom.c b/components/drivers/usb/usbdevice/class/cdc_vcom.c index c3f1d992c..a41493cda 100644 --- a/components/drivers/usb/usbdevice/class/cdc_vcom.c +++ b/components/drivers/usb/usbdevice/class/cdc_vcom.c @@ -336,13 +336,13 @@ static rt_err_t _class_stop(udevice_t device) * * @return RT_EOK on successful. */ -rt_err_t _class_sof_handler(udevice_t device) +static rt_err_t _class_sof_handler(udevice_t device) { rt_uint32_t level; rt_size_t size; static rt_uint32_t frame_count = 0; - if(vcom_connected != RT_TRUE) return; + if(vcom_connected != RT_TRUE) return -RT_ERROR; if (frame_count ++ == 5) { @@ -352,7 +352,7 @@ rt_err_t _class_sof_handler(udevice_t device) frame_count = 0; size = RT_RINGBUFFER_SIZE(&tx_ringbuffer); - if(size == 0) return; + if(size == 0) return -RT_EFULL; size = size > mps ? mps : size; @@ -363,6 +363,8 @@ rt_err_t _class_sof_handler(udevice_t device) /* send data to host */ dcd_ep_write(device->dcd, ep_in, ep_in->buffer, size); } + + return RT_EOK; } static struct uclass_ops ops = @@ -375,7 +377,7 @@ static struct uclass_ops ops = /** * This function will configure cdc descriptor. * - * @param comm the communcation interface number. + * @param comm the communication interface number. * @param data the data interface number. * * @return RT_EOK on successful. -- GitLab