hello,
I am using pxa271 on our customed board, and want to make usb device
to work as ACM device.
I use serial.c from 2.6.11.12 on linux-2.4.20 with a few modify to
header file(no single modify to serial.c). My pxa27x_udc works with
usb-storage, rndis, cdc. but when I insmod g_serial.o use_acm=1 and had
prepared the gserial.inf as gadget-serial tell. I got set_configuration of
2, and class req of USB_CDC_REQ_GET_LINE_CODING and return with
(9600,0,0,8) and USB_CDC_REQ_SET_CONTROL_LINE_STATE,
then choose gserial.inf, but the windows hang for serial minutes, and
indicate unsuccessful hardware,
What is the communication next to class_setup?Following is some debug
info.
Thank you for your help.
------------------------
cat /proc/driver/udc
ep0 max 16 pio irqs 52
(nothing queued)
ep1in-bulk max 64 pio udccsr 41 udccr 400d103 irqs 0/0
(nothing queued)
ep2out-bulk max 64 pio udccsr 00 udccr 4014103 irqs 0/0
req c1d2aa20 len 0/64 buf c1d2aa60
req c1d2aaa0 len 0/64 buf c1d2aae0
......
ep5in-int max 8 pio udccsr 41 udccr 402f023 irqs 0/0
(nothing queued)
insmod g_serial.o use_acm=1
gs_bind: Gadget Serial v2.0 bound
gs_module_init: Gadget Serial v2.0 loaded
SUSpend!
suspend <2>SUSpend!
suspend <6>gs_set_config: Gadget Serial configured, full speed CDC-ACM
config
IECC 2,0,0
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