kernel/device_manager: Implement B_GET_DRIVER_FOR_DEVICE

for legacy and new drivers. This is an opcode for ioctl that can be used on almost any device entry found in /dev. When used, ioctl will fill a buffer with the absolute path to the driver file that is being used by the device. This opcode was available in BeOS R5, though remained unimplemented in Haiku since the introduction of the Device Manager almost two decades ago. Original change by Jacob Secunda. Change-Id: Ic49141b677b4158a63918459d4048450c825447c Reviewed-on: https://review.haiku-os.org/c/haiku/+/5078 Tested-by: Commit checker robot <[email protected]> Reviewed-by: Jérôme Duval <[email protected]>
2022-10-17 06:13:07 +00:00
parent d3e920ba77
commit 8e17b43da6
5 changed files with 66 additions and 17 deletions
@@ -32,6 +32,7 @@ extern status_t load_module(const char *path, module_info ***_modules);
 extern status_t module_init(struct kernel_args *args);
 extern status_t module_init_post_threads(void);
 extern status_t module_init_post_boot_device(bool bootingFromBootLoaderVolume);
+extern status_t module_get_path(const char* moduleName, char** path);

 #ifdef __cplusplus
 }