Lines Matching refs:buffer
63 static ssize_t usb_read(struct file *filep, char *buffer, size_t buflen);
64 static ssize_t usb_write(struct file *filep, const char *buffer, size_t buflen);
1146 usb_read(struct file *filep, char *buffer, size_t buflen)
1216 err = copyout((const void *)m->cur_data_ptr, buffer, io_len);
1253 usb_write(struct file *filep, const char *buffer, size_t buflen)
1331 err = copyin(buffer, pdata, io_len);
1338 /* check if the buffer is ready to be transmitted */
1651 /* Free old buffer, if any. */
1808 * 1 - data in buffer
2044 /* out of buffer space */