diff options
Diffstat (limited to 'include/usb.h')
| -rw-r--r-- | include/usb.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/include/usb.h b/include/usb.h index e68e98e..9a2e72c 100644 --- a/include/usb.h +++ b/include/usb.h @@ -129,6 +129,13 @@ struct usb_config_descriptor { struct usb_interface_descriptor if_desc[USB_MAXINTERFACES]; } __attribute__ ((packed)); +enum { + /* Maximum packet size; encoded as 0,1,2,3 = 8,16,32,64 */ + PACKET_SIZE_8 = 0, + PACKET_SIZE_16 = 1, + PACKET_SIZE_32 = 2, + PACKET_SIZE_64 = 3, +}; struct usb_device { int devnum; /* Device number on USB bus */ @@ -137,9 +144,12 @@ struct usb_device { char prod[32]; /* product */ char serial[32]; /* serial number */ - int maxpacketsize; /* Maximum packet size; encoded as 0,1,2,3 = 8,16,32,64 */ - unsigned int toggle[2]; /* one bit for each endpoint ([0] = IN, [1] = OUT) */ - unsigned int halted[2]; /* endpoint halts; one bit per endpoint # & direction; */ + /* Maximum packet size; one of: PACKET_SIZE_* */ + int maxpacketsize; + /* one bit for each endpoint ([0] = IN, [1] = OUT) */ + unsigned int toggle[2]; + /* endpoint halts; one bit per endpoint # & direction; */ + unsigned int halted[2]; /* [0] = IN, [1] = OUT */ int epmaxpacketin[16]; /* INput endpoint specific maximums */ int epmaxpacketout[16]; /* OUTput endpoint specific maximums */ |