drivers/hid/hid-uclogic-core-test.c
Source file repositories/reference/linux-study-clean/drivers/hid/hid-uclogic-core-test.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/hid/hid-uclogic-core-test.c- Extension
.c- Size
- 2656 bytes
- Lines
- 113
- Domain
- Driver Families
- Bucket
- drivers/hid
- 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.
- Allocates kernel memory; connect allocation flags and lifetime to context constraints.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
kunit/test.h./hid-uclogic-params.h
Detected Declarations
struct uclogic_raw_event_hook_testfunction fake_work
Annotated Snippet
struct uclogic_raw_event_hook_test {
u8 event[MAX_EVENT_SIZE];
size_t size;
bool expected;
};
static struct uclogic_raw_event_hook_test hook_events[] = {
{
.event = { 0xA1, 0xB2, 0xC3, 0xD4 },
.size = 4,
},
{
.event = { 0x1F, 0x2E, 0x3D, 0x4C, 0x5B, 0x6A },
.size = 6,
},
};
static struct uclogic_raw_event_hook_test test_events[] = {
{
.event = { 0xA1, 0xB2, 0xC3, 0xD4 },
.size = 4,
.expected = true,
},
{
.event = { 0x1F, 0x2E, 0x3D, 0x4C, 0x5B, 0x6A },
.size = 6,
.expected = true,
},
{
.event = { 0xA1, 0xB2, 0xC3 },
.size = 3,
.expected = false,
},
{
.event = { 0xA1, 0xB2, 0xC3, 0xD4, 0x00 },
.size = 5,
.expected = false,
},
{
.event = { 0x2E, 0x3D, 0x4C, 0x5B, 0x6A, 0x1F },
.size = 6,
.expected = false,
},
};
static void fake_work(struct work_struct *work)
{
}
static void hid_test_uclogic_exec_event_hook_test(struct kunit *test)
{
struct uclogic_params p = {0, };
struct uclogic_raw_event_hook *filter;
bool res;
int n;
/* Initialize the list of events to hook */
p.event_hooks = kunit_kzalloc(test, sizeof(*p.event_hooks), GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p.event_hooks);
INIT_LIST_HEAD(&p.event_hooks->list);
for (n = 0; n < ARRAY_SIZE(hook_events); n++) {
filter = kunit_kzalloc(test, sizeof(*filter), GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filter);
filter->size = hook_events[n].size;
filter->event = kunit_kzalloc(test, filter->size, GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filter->event);
memcpy(filter->event, &hook_events[n].event[0], filter->size);
INIT_WORK(&filter->work, fake_work);
list_add_tail(&filter->list, &p.event_hooks->list);
}
/* Test uclogic_exec_event_hook() */
for (n = 0; n < ARRAY_SIZE(test_events); n++) {
res = uclogic_exec_event_hook(&p, &test_events[n].event[0],
test_events[n].size);
KUNIT_ASSERT_EQ(test, res, test_events[n].expected);
}
}
static struct kunit_case hid_uclogic_core_test_cases[] = {
KUNIT_CASE(hid_test_uclogic_exec_event_hook_test),
{}
};
static struct kunit_suite hid_uclogic_core_test_suite = {
Annotation
- Immediate include surface: `kunit/test.h`, `./hid-uclogic-params.h`.
- Detected declarations: `struct uclogic_raw_event_hook_test`, `function fake_work`.
- Atlas domain: Driver Families / drivers/hid.
- 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.