David --
I've been using the USB gadget code to develop a driver
for a NetChip 2280 device that runs linux. It is great--
thanks so much.
In running the USBCV Chapter 9 compliance test (usb.org)
and found that the net2280.c file has a bug that causes
it to fail the HaltEndpointTest.
This test
From: David Brownell
That would prevent it working for ep != 0 (== ENDPOINT_HALT),
which matches a similar report I got.
That's right.
Thanks again,
-- Al
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Greg mentioned a USB gadget serial device a few days ago
and it piqued my interest.
I am finishing a gadget and host driver that provides Unix style
pipes between a host and device over USB 2.0/1.1. Not sure if
the company I am contracting with will be willing to release
it GPL or not (my guess
How should the interval field in an urb for USB 2.0
interpretted? Is it microframes (125 micro-seconds)
as the ehci code seems to assume? Or should it be
interpretted like the bInterval field in an endpoint
descriptor?
The USB 2.0 spec, section 9.6.6, Table 9-13, says
For high-speed
From: Joshua Wise [mailto:[EMAIL PROTECTED]
It may be more helpful to write a little
document on your experiences...
I started with zero.c and built up from there. That is a great
starting place. The code there is needed to handle the basic
enumeration duties a USB device is expected to
Dave --
If you have a driver for a dual-speed device, the
driver needs to pay attention to high speed interrupt
transfers.
Can you elaborate? What do I need to pay attention to?
Thanks,
-- Al
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Dave --
The general rule of thumb is that full (and low) speed
transfers haven't changed interpretation -- except that
as of 2.6, full speed iso periods may be multiple frames.
High speed is (as above) in microframes.
Full speed interrupt transfers work for me, but high speed
do not. This
David --
Question: why do you have your own versions of the
wait_event() macros? (From linux/sched.h on 2.4,
or linux/wait.h on 2.6 kernels.)
The macros are slighty different from linux/sched.h
(that is where I got them initially). The difference
is that these macros expect that the caller
Greg --
Looks nice (becides your tab setting is a bit wrong...)
Thanks. I will convert to 8 space tabs.
Mind if I port it to 2.6 and add it to my linuxusb.bkbits.net/usb-2.5
kernel tree so I can play around with it?
Please do. I was planning on porting to 2.6 myself (I need the
Dave, Greg --
Here is a little patch for gserial.c to fix the timeout
while waiting for a condition (used to wait for data
to drain on close). This patch applies to the gserial.c
file I sent Tuesday night.
I sent out a patch last night to add g_serial to
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