On Wednesday 25 August 2004 02:55 am, Greg KH wrote:
>> How does this work for your device? Your driver isn't the
> usb_serial_generic_device, right? What kernel version are you using?
Yes, usb_serial_generic_device. I had rebuilt the kernel with usb_serial hard
linked and forgot that hotplug was also trying to load the module. So your
observation below was correct. Problem with loading module.
I did have to make a couple of changes to generic.c since this device has
fewer bulk_out than bulk_in. This is against 2.6.0.
--- generic.c.orig Wed Aug 25 11:53:25 2004
+++ generic.c Tue Aug 24 23:13:30 2004
@@ -147,7 +147,7 @@
}
/* only do something if we have a bulk out endpoint */
- if (serial->num_bulk_out) {
+ if (serial->num_bulk_out && port->write_urb) {
if (port->write_urb->status == -EINPROGRESS) {
dbg("%s - already writing", __FUNCTION__);
return (0);
@@ -195,7 +195,7 @@
dbg("%s - port %d", __FUNCTION__, port->number);
- if (serial->num_bulk_out) {
+ if (serial->num_bulk_out && port->write_urb) {
if (port->write_urb->status != -EINPROGRESS)
room = port->bulk_out_size;
}
@@ -211,7 +211,7 @@
dbg("%s - port %d", __FUNCTION__, port->number);
- if (serial->num_bulk_out) {
+ if (serial->num_bulk_out && port->write_urb) {
if (port->write_urb->status == -EINPROGRESS)
chars = port->write_urb->transfer_buffer_length;
}
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