51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/* hello-driver - Deshab SDK 最小驱动示例
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*
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* 展示 DKM 驱动三符号契约：driver_desc + driver_init + driver_exit。
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* 构建方式：clang -c main.c -o hello.o && ld.lld -r -o hello.drv hello.o
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* 注册方式：在 SYSTEM/driver/manifest.json 添加条目
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*/
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#include "deshab/driver.h"
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#include "deshab/serial.h"
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static const dkm_log_api *g_log = 0;
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static const char *const g_depends[] = { 0 };
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static const char *const g_provides[] = { "hello" };
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__attribute__((visibility("default")))
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const dkm_driver_desc driver_desc = {
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.magic = DKM_DRIVER_MAGIC,
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.abi_version = DKM_ABI_VERSION,
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.desc_size = sizeof(dkm_driver_desc),
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.name = "hello",
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.version = "1.0",
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.vendor = "Deshab",
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.driver_class = DKM_CLASS_MISC,
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.stage = 3,
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.flags = 0,
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.priority = 100,
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.depends = g_depends,
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.depends_count = 0,
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.provides = g_provides,
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.provides_count = 1,
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.min_kernel_abi = DKM_KERNEL_API_VERSION,
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.feature_bits = 0,
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};
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__attribute__((visibility("default")))
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int driver_init(const dkm_kernel_api *api, dkm_driver_handle *handle) {
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(void)handle;
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if (!api || !api->log) return -1;
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g_log = api->log;
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g_log->info("[hello] init");
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g_log->info("[hello] driver ready");
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return 0;
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}
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__attribute__((visibility("default")))
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int driver_exit(dkm_driver_handle *handle) {
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(void)handle;
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if (g_log) g_log->info("[hello] exit");
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return 0;
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}
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