RE: [PATCH 06/31] usb: usbssp: added template functions used by upper layer.
From: Pawel Laszczak
Date: Mon Aug 06 2018 - 07:43:13 EST
>
> On 04/08/18 09:37, Pawel Laszczak wrote:
> >>> Patch adds some functionality for initialization process.
> >>> It adds to driver usbssp_reset and usbssp_start function.
> >>>
> >>> Next elements added are objects usbssp_gadget_ep0_ops,
> >>> usbssp_gadget_ep_ops and usbssp_gadget_ops. These objects
> >>> constitute the interface used by gadget subsystem.
> >>> At this moment functions related to these objects are empty
> >>> and do nothing.
> >>>
> >>> This patch also implements usbssp_gadget_init_endpoint and
> >>> usbssp_gadget_free_endpoint used during initialization.
> >>>
> >>> Signed-off-by: Pawel Laszczak <pawell@xxxxxxxxxxx>
> >>> ---
> >>> drivers/usb/usbssp/gadget-ext-caps.h | 3 +
> >>> drivers/usb/usbssp/gadget-if.c | 269 ++++++++++++++++++++++++++-
> >>> drivers/usb/usbssp/gadget.c | 84 ++++++++-
> >>> 3 files changed, 350 insertions(+), 6 deletions(-)
> >>>
> >>> diff --git a/drivers/usb/usbssp/gadget-ext-caps.h b/drivers/usb/usbssp/gadget-ext-caps.h
> >>> index 2bf327046376..86c0ce331037 100644
> >>> --- a/drivers/usb/usbssp/gadget-ext-caps.h
> >>> +++ b/drivers/usb/usbssp/gadget-ext-caps.h
> >>> @@ -51,3 +51,6 @@
> >>> #define USBSSP_CMD_EWE BIT(10)
> >>>
> >>> #define USBSSP_IRQS (USBSSP_CMD_EIE | USBSSP_CMD_HSEIE | USBSSP_CMD_EWE)
> >>> +
> >>> +/* true: Controller Not Ready to accept doorbell or op reg writes after reset */
> >>> +#define USBSSP_STS_CNR BIT(11)
> >>> diff --git a/drivers/usb/usbssp/gadget-if.c b/drivers/usb/usbssp/gadget-if.c
> >>> index d53e0fb65299..70def978b085 100644
> >>> --- a/drivers/usb/usbssp/gadget-if.c
> >>> +++ b/drivers/usb/usbssp/gadget-if.c
> >>> @@ -12,13 +12,278 @@
> >>> #include <linux/usb/composite.h>
> >>> #include "gadget.h"
> >>>
> >>> +static int usbssp_gadget_ep_enable(struct usb_ep *ep,
> >>> + const struct usb_endpoint_descriptor *desc)
> >>> +{
> >>> + struct usbssp_ep *ep_priv = to_usbssp_ep(ep);
> >>> + int ret = 0;
> >>> +
> >>> + if (!ep_priv)
> >>> + return -EINVAL;
> >>> +
> >>> + /*TODO: implements this function*/
> >>> + return ret;
> >>> +}
> >>> +
> >>> +int usbssp_gadget_ep_disable(struct usb_ep *ep)
> >>> +{
> >>> + struct usbssp_ep *ep_priv = to_usbssp_ep(ep);
> >>> + int ret = 0;
> >>> +
> >>> + if (!ep_priv)
> >>> + return -EINVAL;
> >>> +
> >>> + /*TODO: implements this function*/
> >>> + return ret;
> >>> +}
> >>> +
> >>> +static struct usb_request *usbssp_gadget_ep_alloc_request(struct usb_ep *ep,
> >>> + gfp_t gfp_flags)
> >>> +{
> >>> + struct usbssp_ep *ep_priv = to_usbssp_ep(ep);
> >>> +
> >>> + if (!ep_priv)
> >>> + return NULL;
> >>> +
> >>> + /*TODO: implements this function*/
> >>> + return NULL;
> >>> +}
> >>> +
> >>> +static void usbssp_gadget_ep_free_request(struct usb_ep *ep,
> >>> + struct usb_request *request)
> >>> +{
> >>> + struct usbssp_ep *ep_priv = to_usbssp_ep(ep);
> >>> +
> >>> + if (!ep_priv)
> >>> + return;
> >>> +
> >>> + /*TODO: implements this function*/
> >>> +}
> >>> +
> >>> +static int usbssp_gadget_ep_queue(struct usb_ep *ep,
> >>> + struct usb_request *request,
> >>> + gfp_t gfp_flags)
> >>> +{
> >>> + struct usbssp_ep *ep_priv = to_usbssp_ep(ep);
> >>> + int ret = 0;
> >>> +
> >>> + if (!ep_priv)
> >>> + return -EINVAL;
> >>> +
> >>> + /*TODO: implements this function*/
> >>> + return ret;
> >>> +}
> >>> +
> >>> +static int usbssp_gadget_ep_dequeue(struct usb_ep *ep,
> >>> + struct usb_request *request)
> >>> +{
> >>> + struct usbssp_ep *ep_priv = to_usbssp_ep(ep);
> >>> + int ret = 0;
> >>> +
> >>> + if (!ep_priv)
> >>> + return -EINVAL;
> >>> +
> >>> + /*TODO: implements this function*/
> >>> + return ret;
> >>> +}
> >>> +
> >>> +static int usbssp_gadget_ep_set_halt(struct usb_ep *ep, int value)
> >>> +{
> >>> + struct usbssp_ep *ep_priv = to_usbssp_ep(ep);
> >>> + int ret = 0;
> >>> +
> >>> + if (!ep_priv)
> >>> + return -EINVAL;
> >>> +
> >>> + /*TODO: implements this function*/
> >>> + return ret;
> >>> +}
> >>> +
> >>> +static int usbssp_gadget_ep_set_wedge(struct usb_ep *ep)
> >>> +{
> >>> + struct usbssp_ep *ep_priv = to_usbssp_ep(ep);
> >>> + int ret = 0;
> >>> +
> >>> + if (!ep_priv)
> >>> + return -EINVAL;
> >>> +
> >>> + /*TODO: implements this function*/
> >>> + return ret;
> >>> +}
> >>> +
> >>> +static const struct usb_ep_ops usbssp_gadget_ep0_ops = {
> >>> + .enable = usbssp_gadget_ep_enable,
> >>> + .disable = usbssp_gadget_ep_disable,
> >>> + .alloc_request = usbssp_gadget_ep_alloc_request,
> >>> + .free_request = usbssp_gadget_ep_free_request,
> >>> + .queue = usbssp_gadget_ep_queue,
> >>> + .dequeue = usbssp_gadget_ep_dequeue,
> >>> + .set_halt = usbssp_gadget_ep_set_halt,
> >>> + .set_wedge = usbssp_gadget_ep_set_wedge,
> >>> +};
> >>> +
> >>> +static const struct usb_ep_ops usbssp_gadget_ep_ops = {
> >>> + .enable = usbssp_gadget_ep_enable,
> >>> + .disable = usbssp_gadget_ep_disable,
> >>> + .alloc_request = usbssp_gadget_ep_alloc_request,
> >>> + .free_request = usbssp_gadget_ep_free_request,
> >>> + .queue = usbssp_gadget_ep_queue,
> >>> + .dequeue = usbssp_gadget_ep_dequeue,
> >>> + .set_halt = usbssp_gadget_ep_set_halt,
> >>> + .set_wedge = usbssp_gadget_ep_set_wedge,
> >>> +};
> >>> +
> >>> +static struct usb_endpoint_descriptor usbssp_gadget_ep0_desc = {
> >>> + .bLength = USB_DT_ENDPOINT_SIZE,
> >>> + .bDescriptorType = USB_DT_ENDPOINT,
> >>> + .bmAttributes = USB_ENDPOINT_XFER_CONTROL,
> >>> +};
> >>> +
> >>> +static int usbssp_gadget_start(struct usb_gadget *g,
> >>> + struct usb_gadget_driver *driver)
> >>> +{
> >>> + struct usbssp_udc *usbssp_data = gadget_to_usbssp(g);
> >>> + int ret = 0;
> >>> +
> >>> + if (usbssp_data->gadget_driver) {
> >>> + dev_err(usbssp_data->dev, "%s is already bound to %s\n",
> >>> + usbssp_data->gadget.name,
> >>> + usbssp_data->gadget_driver->driver.name);
> >>> + ret = -EBUSY;
> >>> + }
> >>> +
> >>> + /*TODO: add implementation*/
> >>> + return ret;
> >>> +}
> >>> +
> >>> +static int usbssp_gadget_stop(struct usb_gadget *g)
> >>> +{
> >>> + struct usbssp_udc *usbssp_data = gadget_to_usbssp(g);
> >>> +
> >>> + if (!usbssp_data)
> >>> + return -EINVAL;
> >>> + /*TODO: add implementation*/
> >>> + return 0;
> >>> +}
> >>> +
> >>> +static int usbssp_gadget_get_frame(struct usb_gadget *g)
> >>> +{
> >>> + struct usbssp_udc *usbssp_data = gadget_to_usbssp(g);
> >>> +
> >>> + if (!usbssp_data)
> >>> + return -EINVAL;
> >>> +
> >>> + /*TODO: add implementation*/
> >>> + return 0;
> >>> +}
> >>> +
> >>> +static int usbssp_gadget_wakeup(struct usb_gadget *g)
> >>> +{
> >>> + struct usbssp_udc *usbssp_data = gadget_to_usbssp(g);
> >>> +
> >>> + if (!usbssp_data)
> >>> + return -EINVAL;
> >>> +
> >>> + /*TODO: add implementation*/
> >>> + return 0;
> >>> +}
> >>> +
> >>> +static int usbssp_gadget_set_selfpowered(struct usb_gadget *g,
> >>> + int is_selfpowered)
> >>> +{
> >>> + struct usbssp_udc *usbssp_data = gadget_to_usbssp(g);
> >>> +
> >>> + if (!usbssp_data)
> >>> + return -EINVAL;
> >>> +
> >>> + /*TODO: add implementation*/
> >>> + return 0;
> >>> +}
> >>> +
> >>> +static const struct usb_gadget_ops usbssp_gadget_ops = {
> >>> + .get_frame = usbssp_gadget_get_frame,
> >>> + .wakeup = usbssp_gadget_wakeup,
> >>> + .set_selfpowered = usbssp_gadget_set_selfpowered,
> >>> + .udc_start = usbssp_gadget_start,
> >>> + .udc_stop = usbssp_gadget_stop,
> >>> +};
> >>> +
> >>> int usbssp_gadget_init_endpoint(struct usbssp_udc *usbssp_data)
> >>
> >> Since we're initializing all endpoints this function should be named usbssp_gadget_init_endpoints().
> >>
> >>> {
> >>> - /*TODO: it has to be implemented*/
> >>> + int i = 0;
> >>> + struct usbssp_ep *ep_priv;
> >>> +
> >>> + usbssp_data->num_endpoints = USBSSP_ENDPOINTS_NUM;
> >>> + INIT_LIST_HEAD(&usbssp_data->gadget.ep_list);
> >>> +
> >>> + for (i = 1; i < usbssp_data->num_endpoints; i++) {
> >>> + bool direction = i & 1; /*start from OUT endpoint*/
> >>> + u8 epnum = (i >> 1);
> >>> +
> >>> + ep_priv = &usbssp_data->devs.eps[i-1];
> >>> + ep_priv->usbssp_data = usbssp_data;
> >>> + ep_priv->number = epnum;
> >>> + ep_priv->direction = direction; /*0 for OUT, 1 for IN*/
> >>> +
> >>> + snprintf(ep_priv->name, sizeof(ep_priv->name), "ep%d%s", epnum,
> >>> + (ep_priv->direction) ? "in" : "out");
> >>> +
> >>> + ep_priv->endpoint.name = ep_priv->name;
> >>> +
> >>> + if (ep_priv->number < 2) {
> >>> + ep_priv->endpoint.desc = &usbssp_gadget_ep0_desc;
> >>> + ep_priv->endpoint.comp_desc = NULL;
> >>> + }
> >>> +
> >>> + if (epnum == 0) {
> >>> + /*EP0 is bidirectional endpoint*/
> >>> + usb_ep_set_maxpacket_limit(&ep_priv->endpoint, 512);
> >>> + dev_dbg(usbssp_data->dev,
> >>> + "Initializing %s, MaxPack: %04x Type: Ctrl\n",
> >>> + ep_priv->name, 512);
> >>> + ep_priv->endpoint.maxburst = 1;
> >>> + ep_priv->endpoint.ops = &usbssp_gadget_ep0_ops;
> >>> + ep_priv->endpoint.caps.type_control = true;
> >>> +
> >>> + usbssp_data->usb_req_ep0_in.epnum = ep_priv->number;
> >>> + usbssp_data->usb_req_ep0_in.dep = ep_priv;
> >>> +
> >>> + if (!epnum)
> >>> + usbssp_data->gadget.ep0 = &ep_priv->endpoint;
> >>> + } else {
> >>> + usb_ep_set_maxpacket_limit(&ep_priv->endpoint, 1024);
> >>> + ep_priv->endpoint.maxburst = 15;
> >>> + ep_priv->endpoint.ops = &usbssp_gadget_ep_ops;
> >>> + list_add_tail(&ep_priv->endpoint.ep_list,
> >>> + &usbssp_data->gadget.ep_list);
> >>> + ep_priv->endpoint.caps.type_iso = true;
> >>> + ep_priv->endpoint.caps.type_bulk = true;
> >>> + ep_priv->endpoint.caps.type_int = true;
> >>> +
> >>> + }
> >>> +
> >>> + ep_priv->endpoint.caps.dir_in = direction;
> >>> + ep_priv->endpoint.caps.dir_out = !direction;
> >>
> >> Since you start from 1, ep0 will only be initialized as dir_in.
> >> Is it better to represent EP0in and EP0out separately?
> >> If so you can start i from 0 and use
> >> ep_priv = &usbssp_data->devs.eps[i];
> >>
> >> This should fix the direction. eps[0] will be ep0out and eps[1] will be ep0in.
> >
> > I wanted to be consistent with Device Context Data Structure from
> > XHCI specification (EP Context 0 BiDir, EP Context 1 OUT, EP Context 1 IN ...).
> >
> > I little change this function, and now it look like this:
> > int usbssp_gadget_init_endpoints(struct usbssp_udc *usbssp_data)
> > {
> > int i = 0;
> > struct usbssp_ep *ep_priv;
> >
> > usbssp_data->num_endpoints = USBSSP_ENDPOINTS_NUM;
> > INIT_LIST_HEAD(&usbssp_data->gadget.ep_list);
> >
> > for (i = 0; i < usbssp_data->num_endpoints; i++) {
> > bool direction = i & 1; /*start from OUT endpoint*/
> > u8 epnum = ((i + 1) >> 1);
> >
> > ep_priv = &usbssp_data->devs.eps[i];
> > ep_priv->usbssp_data = usbssp_data;
> > ep_priv->number = epnum;
> > ep_priv->direction = direction; /*0 for OUT, 1 for IN*/
> >
> > /*
> > *Ep0 is bidirectional so Ep0In and Ep0Out is represented by
> > * usbssp_data->devs.eps[0]
> > */
> > if (epnum == 0) {
> > snprintf(ep_priv->name, sizeof(ep_priv->name), "ep%d%s",
> > epnum, "BiDir");
> >
> > usb_ep_set_maxpacket_limit(&ep_priv->endpoint, 512);
> > ep_priv->endpoint.maxburst = 1;
> > ep_priv->endpoint.ops = &usbssp_gadget_ep0_ops;
> > ep_priv->endpoint.desc = &usbssp_gadget_ep0_desc;
> >
> > ep_priv->endpoint.comp_desc = NULL;
> > ep_priv->endpoint.caps.type_control = true;
> > ep_priv->endpoint.caps.dir_in = true;
> > ep_priv->endpoint.caps.dir_out = true;
> >
> > usbssp_data->usb_req_ep0_in.epnum = ep_priv->number;
> > usbssp_data->usb_req_ep0_in.dep = ep_priv;
> > usbssp_data->gadget.ep0 = &ep_priv->endpoint;
> >
> > } else {
> > snprintf(ep_priv->name, sizeof(ep_priv->name), "ep%d%s",
> > epnum, (ep_priv->direction) ? "in" : "out");
> >
> > usb_ep_set_maxpacket_limit(&ep_priv->endpoint, 1024);
> > ep_priv->endpoint.maxburst = 15;
> > ep_priv->endpoint.ops = &usbssp_gadget_ep_ops;
> > list_add_tail(&ep_priv->endpoint.ep_list,
> > &usbssp_data->gadget.ep_list);
> >
> > ep_priv->endpoint.caps.type_iso = true;
> > ep_priv->endpoint.caps.type_bulk = true;
> > ep_priv->endpoint.caps.type_int = true;
> >
> > ep_priv->endpoint.caps.dir_in = direction;
> > ep_priv->endpoint.caps.dir_out = !direction;
> > }
> >
> > ep_priv->endpoint.name = ep_priv->name;
>
> I think this is much better now.
>
> >
> > dev_dbg(usbssp_data->dev, "Init %s, MaxPack: %04x SupType: "
> > "CTRL: %s, INT: %s, BULK: %s, ISOC %s, "
> > "SupDir IN: %s, OUT: %s\n",
> > ep_priv->name, 1024,
> > (ep_priv->endpoint.caps.type_control) ? "yes" : "no",
> > (ep_priv->endpoint.caps.type_int) ? "yes" : "no",
> > (ep_priv->endpoint.caps.type_bulk) ? "yes" : "no",
> > (ep_priv->endpoint.caps.type_iso) ? "yes" : "no",
> > (ep_priv->endpoint.caps.dir_in) ? "yes" : "no",
> > (ep_priv->endpoint.caps.dir_out) ? "yes" : "no");
> >
>
> In some places you use usbssp_dbg_trace() and at others you use dev_dbg().
> Is it better to stick with one throughout?
Yes, it true, It would be better. I will think about that.
> > INIT_LIST_HEAD(&ep_priv->pending_list);
> > }
> >
> > return 0;
> > }
> >
> >>> +
> >>> + dev_dbg(usbssp_data->dev, "Init %s, MaxPack: %04x SupType:"
> >>> + " INT/BULK/ISOC , SupDir %s\n",
> >>> + ep_priv->name, 1024,
> >>> + (ep_priv->endpoint.caps.dir_in) ? "IN" : "OUT");
> >>> +
> >>> + INIT_LIST_HEAD(&ep_priv->pending_list);
> >>> + }
> >>> return 0;
> >>> }
> >>>
> >>> void usbssp_gadget_free_endpoint(struct usbssp_udc *usbssp_data)
> >>> {
> >>> - /*TODO: it has to be implemented*/
> >>> + int i;
> >>> + struct usbssp_ep *ep_priv;
> >>> +
> >>> + for (i = 0; i < usbssp_data->num_endpoints; i++) {
> >>> + ep_priv = &usbssp_data->devs.eps[i];
> >>> +
> >>
> >> if you start i from 1 then you can skip the if().
> >>
> >>> + if (ep_priv->number != 0)
> >>> + list_del(&ep_priv->endpoint.ep_list);
> >>> + }
> >>> }
> >>> diff --git a/drivers/usb/usbssp/gadget.c b/drivers/usb/usbssp/gadget.c
> >>> index 338ec2ec18b1..195f5777cf8a 100644
> >>> --- a/drivers/usb/usbssp/gadget.c
> >>> +++ b/drivers/usb/usbssp/gadget.c
> >>> @@ -103,6 +103,83 @@ int usbssp_halt(struct usbssp_udc *usbssp_data)
> >>> return ret;
> >>> }
> >>>
> >>> +/*
> >>> + * Set the run bit and wait for the device to be running.
> >>> + */
> >>> +int usbssp_start(struct usbssp_udc *usbssp_data)
> >>> +{
> >>> + u32 temp;
> >>> + int ret;
> >>> +
> >>> + temp = readl(&usbssp_data->op_regs->command);
> >>> + temp |= (CMD_RUN | CMD_DEVEN);
> >>> + usbssp_dbg_trace(usbssp_data, trace_usbssp_dbg_init,
> >>> + "// Turn on USBSSP, cmd = 0x%x.", temp);
> >>> + writel(temp, &usbssp_data->op_regs->command);
> >>> +
> >>> + /*
> >>> + * Wait for the HCHalted Staus bit to be 0 to indicate the device is
> >>> + * running.
> >>> + */
> >>> + ret = usbssp_handshake(&usbssp_data->op_regs->status,
> >>> + STS_HALT, 0, USBSSP_MAX_HALT_USEC);
> >>> +
> >>> + if (ret == -ETIMEDOUT)
> >>> + dev_err(usbssp_data->dev, "Device took too long to start, waited %u microseconds.\n",
> >>> + USBSSP_MAX_HALT_USEC);
> >>> + if (!ret)
> >>> + /* clear state flags. Including dying, halted or removing */
> >>> + usbssp_data->usbssp_state = 0;
> >>> +
> >>> + return ret;
> >>> +}
> >>> +
> >>> +/*
> >>> + * Reset a halted DC.
> >>> + *
> >>> + * This resets pipelines, timers, counters, state machines, etc.
> >>> + * Transactions will be terminated immediately, and operational registers
> >>> + * will be set to their defaults.
> >>> + */
> >>> +int usbssp_reset(struct usbssp_udc *usbssp_data)
> >>> +{
> >>> + u32 command;
> >>> + u32 state;
> >>> + int ret;
> >>> +
> >>> + state = readl(&usbssp_data->op_regs->status);
> >>> +
> >>> + if (state == ~(u32)0) {
> >>> + dev_warn(usbssp_data->dev, "Device not accessible, reset failed.\n");
> >>> + return -ENODEV;
> >>> + }
> >>> +
> >>> + if ((state & STS_HALT) == 0) {
> >>> + dev_warn(usbssp_data->dev, "DC not halted, aborting reset.\n");
> >>
> >> DC is not a familiar abbreviation. Mabe just use Controller? or Device controller.
> >
> > In xhci driver is often used HC for host controller. In device driver I change this abbreviation
> > to DC. I will review the patches and change this to Controller.
> >
> >>
> >>> + return 0;
> >>> + }
> >>> +
> >>> + usbssp_dbg_trace(usbssp_data, trace_usbssp_dbg_init, "// Reset the DC");
> >>> + command = readl(&usbssp_data->op_regs->command);
> >>> + command |= CMD_RESET;
> >>> + writel(command, &usbssp_data->op_regs->command);
> >>> +
> >>> + ret = usbssp_handshake(&usbssp_data->op_regs->command,
> >>> + CMD_RESET, 0, 10 * 1000 * 1000);
> >>> +
> >>> + if (ret)
> >>> + return ret;
> >>> + usbssp_dbg_trace(usbssp_data, trace_usbssp_dbg_init,
> >>> + "Wait for controller to be ready for doorbell rings");
> >>> + /*
> >>> + * USBSSP cannot write to any doorbells or operational registers other
> >>> + * than status until the "Controller Not Ready" flag is cleared.
> >>> + */
> >>> + ret = usbssp_handshake(&usbssp_data->op_regs->status,
> >>> + STS_CNR, 0, 10 * 1000 * 1000);
> >>> +
> >>> + return ret;
> >>> +}
> >>>
> >>> /*
> >>> * Initialize memory for gadget driver and USBSSP (one-time init).
> >>> @@ -179,8 +256,7 @@ int usbssp_gen_setup(struct usbssp_udc *usbssp_data)
> >>>
> >>> dev_dbg(usbssp_data->dev, "Resetting Device Controller\n");
> >>> /* Reset the internal DC memory state and registers. */
> >>> - /*TODO: add implementation of usbssp_reset function*/
> >>> - //retval = usbssp_reset(usbssp_data);
> >>> + retval = usbssp_reset(usbssp_data);
> >>> if (retval)
> >>> return retval;
> >>> dev_dbg(usbssp_data->dev, "Reset complete\n");
> >>> @@ -244,8 +320,7 @@ int usbssp_gadget_init(struct usbssp_udc *usbssp_data)
> >>> BUILD_BUG_ON(sizeof(struct usbssp_run_regs) != (8+8*128)*32/8);
> >>>
> >>> /* fill gadget fields */
> >>> - /*TODO: implements usbssp_gadget_ops object*/
> >>> - //usbssp_data->gadget.ops = &usbssp_gadget_ops;
> >>> + usbssp_data->gadget.ops = &usbssp_gadget_ops;
> >>> usbssp_data->gadget.name = "usbssp-gadget";
> >>> usbssp_data->gadget.max_speed = USB_SPEED_SUPER_PLUS;
> >>> usbssp_data->gadget.speed = USB_SPEED_UNKNOWN;
> >>> @@ -288,6 +363,7 @@ int usbssp_gadget_init(struct usbssp_udc *usbssp_data)
> >>> usbssp_halt(usbssp_data);
> >>> /*TODO add implementation of usbssp_reset function*/
> >>> //usbssp_reset(usbssp_data);
> >>> + usbssp_reset(usbssp_data);
> >>> /*TODO add implementation of freeing memory*/
> >>> //usbssp_mem_cleanup(usbssp_data);
> >>> err3:
> >>>
> >>
> >> --
> >> cheers,
> >> -roger
> >>
> >> Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
> >> Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
> >
> > Cheers
> > Pawel
> >
>
> --
> cheers,
> -roger
>
> Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
> Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
cheers
Pawel