diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/sl811_usb.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/sl811_usb.c b/drivers/sl811_usb.c index ce5afe0..5136cdc 100644 --- a/drivers/sl811_usb.c +++ b/drivers/sl811_usb.c @@ -226,7 +226,12 @@ int usb_lowlevel_stop(void) return 0; } -int sl811_send_packet(int dir_to_host, int data1, __u8 *buffer, int len) +static int calc_needed_buswidth(int bytes, int low_speed) +{ + return bytes * 8 + 512; +} + +static int sl811_send_packet(int dir_to_host, int data1, __u8 *buffer, int len) { __u8 ctrl = SL811_USB_CTRL_ARM | SL811_USB_CTRL_ENABLE; __u16 status = 0; @@ -248,7 +253,7 @@ int sl811_send_packet(int dir_to_host, int data1, __u8 *buffer, int len) if (!dir_to_host && len) sl811_write_buf(0x10, buffer, len); - if (sl811_read(SL811_SOFCNTDIV)*64 < len * 8 * 2) + if (sl811_read(SL811_SOFCNTDIV)*64 < calc_needed_buswidth(len, 0)) ctrl |= SL811_USB_CTRL_SOF; else ctrl &= ~SL811_USB_CTRL_SOF; @@ -494,7 +499,7 @@ static int ascii2utf (char *s, u8 *utf, int utfmax) * root_hub_string is used by each host controller's root hub code, * so that they're identified consistently throughout the system. */ -int usb_root_hub_string (int id, int serial, char *type, __u8 *data, int len) +static int usb_root_hub_string (int id, int serial, char *type, __u8 *data, int len) { char buf [30]; @@ -503,7 +508,7 @@ int usb_root_hub_string (int id, int serial, char *type, __u8 *data, int len) /* language ids */ if (id == 0) { - *data++ = 4; *data++ = 3; /* 4 bytes data */ + *data++ = 3; *data++ = 4; /* 4 bytes data */ *data++ = 0; *data++ = 0; /* some language id */ return 4; |