scratch_read_ptr 165 drivers/media/usb/usbvision/usbvision-core.c int len = usbvision->scratch_write_ptr - usbvision->scratch_read_ptr; scratch_read_ptr 178 drivers/media/usb/usbvision/usbvision-core.c int free = usbvision->scratch_read_ptr - usbvision->scratch_write_ptr; scratch_read_ptr 257 drivers/media/usb/usbvision/usbvision-core.c *ptr = (usbvision->scratch_read_ptr + len) % scratch_buf_size; scratch_read_ptr 278 drivers/media/usb/usbvision/usbvision-core.c if (usbvision->scratch_read_ptr + len < scratch_buf_size) { scratch_read_ptr 279 drivers/media/usb/usbvision/usbvision-core.c memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len); scratch_read_ptr 280 drivers/media/usb/usbvision/usbvision-core.c usbvision->scratch_read_ptr += len; scratch_read_ptr 282 drivers/media/usb/usbvision/usbvision-core.c len_part = scratch_buf_size - usbvision->scratch_read_ptr; scratch_read_ptr 283 drivers/media/usb/usbvision/usbvision-core.c memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len_part); scratch_read_ptr 285 drivers/media/usb/usbvision/usbvision-core.c usbvision->scratch_read_ptr = 0; /* just set the read_ptr to zero */ scratch_read_ptr 288 drivers/media/usb/usbvision/usbvision-core.c usbvision->scratch_read_ptr = len - len_part; scratch_read_ptr 292 drivers/media/usb/usbvision/usbvision-core.c PDEBUG(DBG_SCRATCH, "len=%d, new read_ptr=%d\n", len, usbvision->scratch_read_ptr); scratch_read_ptr 308 drivers/media/usb/usbvision/usbvision-core.c usbvision->scratch_read_ptr = scratch_read_ptr 330 drivers/media/usb/usbvision/usbvision-core.c usbvision->scratch_read_ptr += len; scratch_read_ptr 331 drivers/media/usb/usbvision/usbvision-core.c usbvision->scratch_read_ptr %= scratch_buf_size; scratch_read_ptr 332 drivers/media/usb/usbvision/usbvision-core.c PDEBUG(DBG_SCRATCH, "read_ptr is now %d\n", usbvision->scratch_read_ptr); scratch_read_ptr 341 drivers/media/usb/usbvision/usbvision-core.c usbvision->scratch_read_ptr = 0; scratch_read_ptr 406 drivers/media/usb/usbvision/usbvision.h int scratch_read_ptr;