diff options
| author | Ian Moffett <ian@osmora.org> | 2025-10-09 17:06:22 -0400 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2025-10-09 17:17:52 -0400 |
| commit | d1296d7ca780daf7c54520831e6ebb5cbe0a3642 (patch) | |
| tree | b2cfda818c7383875a1588ad2bb51408cf6e0903 /src/sys/include/compat | |
| parent | 22a4e1692886c118955da0326ed45bf4a8f7682e (diff) | |
kern: iotap: Expose I/O taps to userland
Expose I/O taps to userland using a tap message interface. An
application may construct a tap message to send to the kernel requesting
data from a specific tap, if there is data, the buffers will be safely
populated, otherwise some error returned.
An example is accessing the PS/2 keyboard tap:
--
char name[] = "i8042.port.0";
char buf[2] = {0, 0};
struct iotap_msg msg = {
.opcode = IOTAP_OPC_READ,
.buf = buf,
.len = len
};
...
/* muxtap() may be used */
...
--
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'src/sys/include/compat')
| -rw-r--r-- | src/sys/include/compat/unix/syscall.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/sys/include/compat/unix/syscall.h b/src/sys/include/compat/unix/syscall.h index 5945f75..743e50c 100644 --- a/src/sys/include/compat/unix/syscall.h +++ b/src/sys/include/compat/unix/syscall.h @@ -34,6 +34,7 @@ #include <sys/param.h> #include <sys/mount.h> #include <sys/syscall.h> +#include <os/iotap.h> /* * Exit the current process - exit(2) syscall @@ -69,7 +70,8 @@ scret_t(*g_unix_sctab[])(struct syscall_args *) = { [SYS_query] = sys_query, [SYS_spawn] = sys_spawn, [SYS_mount] = sys_mount, - [SYS_open] = sys_open + [SYS_open] = sys_open, + [SYS_muxtap] = sys_muxtap }; #endif /* !_NEED_UNIX_SCTAB */ |