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Fixed _class_sof_handler function return value. 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2345 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong 2012-10-11 23:35:42 +00:00
parent c752d9b095
commit f1862e80f7
1 changed files with 6 additions and 4 deletions
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10
components/drivers/usb/usbdevice/class/cdc_vcom.c
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@ -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.