drivers/staging/media/ipu7/ipu7-isys-csi2.c

Source file repositories/reference/linux-study-clean/drivers/staging/media/ipu7/ipu7-isys-csi2.c

File Facts

System
Linux kernel
Corpus path
drivers/staging/media/ipu7/ipu7-isys-csi2.c
Extension
.c
Size
14872 bytes
Lines
544
Domain
Driver Families
Bucket
drivers/staging
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (source_stream == desc.entry[i].stream) {
			desc_entry = &desc.entry[i];
			break;
		}
	}

	if (!desc_entry) {
		dev_err(dev, "Failed to find stream %u from remote subdev\n",
			source_stream);
		return -EINVAL;
	}

	if (desc_entry->bus.csi2.vc >= IPU7_NR_OF_CSI2_VC) {
		dev_err(dev, "invalid vc %d\n", desc_entry->bus.csi2.vc);
		return -EINVAL;
	}

	*entry = *desc_entry;

	for (i = 0; i < desc.num_entries; i++) {
		if (desc_entry->bus.csi2.vc == desc.entry[i].bus.csi2.vc)
			(*nr_queues)++;
	}

	return 0;
}

Annotation

Implementation Notes