hi all,
This is the first time I write the usb driver under linux. For macro
FILL_CONTROL_URB( ), I have one question:
URB do not protect by spinlock. FILL_CONTROL_URB( ) just initialize spin
lock and do not use it.
Do I make some mistake? Anyone can give me some suggestion. Thank you in
advance.
-james
============================
#define
FILL_CONTROL_URB(URB,DEV,PIPE,SETUP_PACKET,TRANSFER_BUFFER,BUFFER_LENGTH,COM
PLETE,CONTEXT) \
do {\
spin_lock_init(&(URB)->lock);\
(URB)->dev=DEV;\
(URB)->pipe=PIPE;\
(URB)->setup_packet=SETUP_PACKET;\
(URB)->transfer_buffer=TRANSFER_BUFFER;\
(URB)->transfer_buffer_length=BUFFER_LENGTH;\
(URB)->complete=COMPLETE;\
(URB)->context=CONTEXT;\
} while (0)
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