sound/firewire/amdtp-stream-trace.h
Source file repositories/reference/linux-study-clean/sound/firewire/amdtp-stream-trace.h
File Facts
- System
- Linux kernel
- Corpus path
sound/firewire/amdtp-stream-trace.h- Extension
.h- Size
- 2680 bytes
- Lines
- 82
- Domain
- Driver Families
- Bucket
- sound/firewire
- 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.
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/tracepoint.htrace/define_trace.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
if (s->direction == AMDTP_IN_STREAM) {
__entry->src = fw_parent_device(s->unit)->node_id;
__entry->dest = fw_parent_device(s->unit)->card->node_id;
} else {
__entry->src = fw_parent_device(s->unit)->card->node_id;
__entry->dest = fw_parent_device(s->unit)->node_id;
}
if (cip_header) {
memcpy(__get_dynamic_array(cip_header), cip_header,
__get_dynamic_array_len(cip_header));
}
__entry->payload_quadlets = payload_length / sizeof(__be32);
__entry->data_blocks = data_blocks;
__entry->data_block_counter = data_block_counter,
__entry->packet_index = packet_index;
__entry->irq = !!in_softirq();
__entry->index = index;
),
TP_printk(
"%08x %02u %04u %04x %04x %02d %03u %02u %03u %02u %01u %02u %s",
__entry->cycle_time,
__entry->second,
__entry->cycle,
__entry->src,
__entry->dest,
__entry->channel,
__entry->payload_quadlets,
__entry->data_blocks,
__entry->data_block_counter,
__entry->packet_index,
__entry->irq,
__entry->index,
__print_array(__get_dynamic_array(cip_header),
__get_dynamic_array_len(cip_header), 1))
);
#endif
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE amdtp-stream-trace
#include <trace/define_trace.h>
Annotation
- Immediate include surface: `linux/tracepoint.h`, `trace/define_trace.h`.
- Atlas domain: Driver Families / sound/firewire.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.