From 06f3138dc919df83cbacb880fb68d63698977e44 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Sat, 13 Jul 2024 17:37:05 -0400
Subject: kernel: dev: Support bdevsw

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 sys/fs/devfs.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'sys/fs')

diff --git a/sys/fs/devfs.c b/sys/fs/devfs.c
index e320973..81c2a43 100644
--- a/sys/fs/devfs.c
+++ b/sys/fs/devfs.c
@@ -55,6 +55,14 @@ cdevsw_read(void *devsw, dev_t dev, struct sio_txn *sio)
     return cdevsw->read(dev, sio, 0);
 }
 
+static inline int
+bdevsw_read(void *devsw, dev_t dev, struct sio_txn *sio)
+{
+    struct bdevsw *bdevsw = devsw;
+
+    return bdevsw->read(dev, sio, 0);
+}
+
 /*
  * Get a devfs node by name.
  *
@@ -134,8 +142,8 @@ devfs_read(struct vnode *vp, struct sio_txn *sio)
     if (!dnp->is_block)
         return cdevsw_read(devsw, dnp->dev, sio);
 
-    /* TODO: Block devices */
-    return -EIO;
+    /* Block device */
+    return bdevsw_read(devsw, dnp->dev, sio);
 }
 
 static int
-- 
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