diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/include/sys/disk.h | 1 | ||||
| -rw-r--r-- | sys/kern/disk_engine.c | 12 |
2 files changed, 13 insertions, 0 deletions
diff --git a/sys/include/sys/disk.h b/sys/include/sys/disk.h index a277797..4ad068b 100644 --- a/sys/include/sys/disk.h +++ b/sys/include/sys/disk.h @@ -78,6 +78,7 @@ _Static_assert((V_BSIZE & 1) == 0, "V_BSIZE must be a power of two"); /* Valid disk operations */ #define DISK_IO_READ 0x00 /* Read data from the disk */ #define DISK_IO_WRITE 0x01 /* Write data to disk */ +#define DISK_IO_QUERY 0x02 /* Query disk information */ /* * A disk identifier is a zero-based index into diff --git a/sys/kern/disk_engine.c b/sys/kern/disk_engine.c index a49c15f..1061165 100644 --- a/sys/kern/disk_engine.c +++ b/sys/kern/disk_engine.c @@ -172,6 +172,18 @@ disk_mux_io(diskid_t id, diskop_t opcode, struct disk_param *u_param) param.size ); break; + case DISK_IO_QUERY: + retval = disk_query( + id, + param.buf + ); + + /* Write back info to user program */ + error = copyout(param.buf, param.u_buf, param.size); + if (error < 0) { + retval = error; + } + break; } disk_param_free(¶m); |