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fix(platform/rtthread/usbh_serial): remove unused variable

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Signed-off-by: sakumisu <1203593632@qq.com>
This commit is contained in:
sakumisu
2025-07-02 20:17:20 +08:00
parent 832e4c45fb
commit 53e42e6ceb
1 changed files with 3 additions and 8 deletions
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11
platform/rtthread/usbh_serial.c
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@@ -114,12 +114,10 @@ static void usbh_serial_cdc_acm_free(struct usbh_serial *serial)
static rt_err_t usbh_serial_open(struct rt_device *dev, rt_uint16_t oflag) static rt_err_t usbh_serial_open(struct rt_device *dev, rt_uint16_t oflag)
{ {
struct usbh_serial *serial; struct usbh_serial *serial;
struct usbh_cdc_acm *cdc_acm_class;
RT_ASSERT(dev != RT_NULL); RT_ASSERT(dev != RT_NULL);
serial = (struct usbh_serial *)dev; serial = (struct usbh_serial *)dev;
cdc_acm_class = (struct usbh_cdc_acm *)dev->user_data;
switch (serial->type) { switch (serial->type) {
case USBH_SERIAL_TYPE_CDC_ACM: case USBH_SERIAL_TYPE_CDC_ACM:
@@ -143,12 +141,10 @@ static rt_err_t usbh_serial_open(struct rt_device *dev, rt_uint16_t oflag)
static rt_err_t usbh_serial_close(struct rt_device *dev) static rt_err_t usbh_serial_close(struct rt_device *dev)
{ {
struct usbh_serial *serial; struct usbh_serial *serial;
struct usbh_cdc_acm *cdc_acm_class;
RT_ASSERT(dev != RT_NULL); RT_ASSERT(dev != RT_NULL);
serial = (struct usbh_serial *)dev; serial = (struct usbh_serial *)dev;
cdc_acm_class = (struct usbh_cdc_acm *)dev->user_data;
switch (serial->type) { switch (serial->type) {
case USBH_SERIAL_TYPE_CDC_ACM: case USBH_SERIAL_TYPE_CDC_ACM:
@@ -175,7 +171,6 @@ static rt_ssize_t usbh_serial_read(struct rt_device *dev,
rt_size_t size) rt_size_t size)
{ {
struct usbh_serial *serial; struct usbh_serial *serial;
struct usbh_cdc_acm *cdc_acm_class;
RT_ASSERT(dev != RT_NULL); RT_ASSERT(dev != RT_NULL);
@@ -198,7 +193,7 @@ static rt_ssize_t usbh_serial_write(struct rt_device *dev,
serial = (struct usbh_serial *)dev; serial = (struct usbh_serial *)dev;
align_buf = (rt_uint8_t *)buffer; align_buf = (rt_uint8_t *)buffer;
#ifdef RT_USING_CACHE #ifdef CONFIG_USB_DCACHE_ENABLE
if ((uint32_t)buffer & (CONFIG_USB_ALIGN_SIZE - 1)) { if ((uint32_t)buffer & (CONFIG_USB_ALIGN_SIZE - 1)) {
align_buf = rt_malloc_align(size, CONFIG_USB_ALIGN_SIZE); align_buf = rt_malloc_align(size, CONFIG_USB_ALIGN_SIZE);
if (!align_buf) { if (!align_buf) {
@@ -279,7 +274,7 @@ static rt_err_t usbh_serial_control(struct rt_device *dev,
struct usbh_serial *serial; struct usbh_serial *serial;
struct serial_configure *config; struct serial_configure *config;
struct cdc_line_coding line_coding; struct cdc_line_coding line_coding;
int ret = RT_EINVAL; int ret = -RT_EINVAL;
RT_ASSERT(dev != RT_NULL); RT_ASSERT(dev != RT_NULL);
@@ -385,7 +380,7 @@ static rt_err_t usbh_serial_control(struct rt_device *dev,
break; break;
} }
return RT_EINVAL; return ret;
} }
#ifdef RT_USING_DEVICE_OPS #ifdef RT_USING_DEVICE_OPS