[PATCH 10/14] [rndis_host] Add early_init function pointer to 'struct rndis_data'.
From: Jussi Kivilinna <hidden>
Date: 2008-01-25 22:51:28
Also in:
linux-wireless
Subsystem:
networking drivers, the rest, usb networking drivers · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2008-01-27 · Re: [PATCH 10/14] [rndis_host] Add early_init function pointer to 'struct rndis_data'. · Jussi Kivilinna <hidden>
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 <redacted> --- 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 */