Function pointer is for 'subminidrivers' that need to do work on device
right after minidriver has initialized hardware.
For example, rndis_wlan setting device specific configuration parameters
with OID_GEN_RNDIS_CONFIG_PARAMETER right after rndis_host has
initialized hardware with RNDIS_INIT.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@xxxxxxxx>
---
drivers/net/usb/rndis_host.c | 6 ++++++
drivers/net/usb/usbnet.h | 5 +++++
2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index 1d6bf0a..0813903 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -336,6 +336,12 @@ int generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf)
dev->hard_mtu, tmp, dev->rx_urb_size,
1 << le32_to_cpu(u.init_c->packet_alignment));
+ /* module has some device initialization code needs to be done right
+ * after RNDIS_INIT */
+ if (dev->driver_info->early_init &&
+ dev->driver_info->early_init(dev) != 0)
+ goto halt_fail_and_release;
+
/* Get designated host ethernet address */
reply_len = ETH_ALEN;
retval = rndis_query(dev, intf, u.buf, OID_802_3_PERMANENT_ADDRESS,
diff --git a/drivers/net/usb/usbnet.h b/drivers/net/usb/usbnet.h
index 0b4bf09..25b63d3 100644
--- a/drivers/net/usb/usbnet.h
+++ b/drivers/net/usb/usbnet.h
@@ -116,6 +116,11 @@ struct driver_info {
struct sk_buff *(*tx_fixup)(struct usbnet *dev,
struct sk_buff *skb, gfp_t flags);
+ /* early initialization code, can sleep. This is for minidrivers
+ * having 'subminidrivers' that need to do extra initialization
+ * right after minidriver have initialized hardware. */
+ int (*early_init)(struct usbnet *dev);
+
/* for new devices, use the descriptor-reading code instead */
int in; /* rx endpoint */
int out; /* tx endpoint */
-
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