Caller-owned adapter context binding a block device to a vsource read. More...

#include <ra8_io_blockdev_vsource.h>

Collaboration diagram for ra8_io_blockdev_vsource_ctx_t:

Data Fields
const ra8_io_blockdev_t *	bd
	Bound block device (private; read-only use).
uint8_t	scratch [(uint32_t) k_ra8_io_block_size_bytes]
	One-sector bounce buffer (private).

Detailed Description

Caller-owned adapter context binding a block device to a vsource read.

Zero-initialise and pass to ra8_io_blockdev_vsource_init, which records the bound block device and prepares the embedded one-sector bounce buffer. The ctx you register with ra8_vsource_add_paged is the address of this struct, and ra8_io_blockdev_vsource_read is the callback. Treat the fields as private. The struct and the bound device must out-live every read made through them.