aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/usb/core/hcd.c2
-rw-r--r--drivers/usb/host/ehci-pci.c12
-rw-r--r--drivers/usb/host/xhci-hub.c7
-rw-r--r--drivers/usb/host/xhci-mem.c164
-rw-r--r--drivers/usb/host/xhci.c18
-rw-r--r--drivers/usb/host/xhci.h26
-rw-r--r--drivers/usb/misc/yurex.c1
-rw-r--r--drivers/usb/musb/musb_core.c3
-rw-r--r--drivers/usb/musb/musb_gadget.c124
-rw-r--r--drivers/usb/serial/ftdi_sio.c2
-rw-r--r--drivers/usb/serial/ftdi_sio_ids.h4
-rw-r--r--drivers/usb/serial/usb-serial.c3
-rw-r--r--include/linux/usb.h4
13 files changed, 332 insertions, 38 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 61800f77dac..ced846ac414 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1330,6 +1330,8 @@ static int map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb,
*/
if (usb_endpoint_xfer_control(&urb->ep->desc)) {
+ if (hcd->self.uses_pio_for_control)
+ return ret;
if (hcd->self.uses_dma) {
urb->setup_dma = dma_map_single(
hcd->self.controller,
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 01bb72b7183..655f3c9f88b 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -161,6 +161,18 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
if (pdev->revision < 0xa4)
ehci->no_selective_suspend = 1;
break;
+
+ /* MCP89 chips on the MacBookAir3,1 give EPROTO when
+ * fetching device descriptors unless LPM is disabled.
+ * There are also intermittent problems enumerating
+ * devices with PPCD enabled.
+ */
+ case 0x0d9d:
+ ehci_info(ehci, "disable lpm/ppcd for nvidia mcp89");
+ ehci->has_lpm = 0;
+ ehci->has_ppcd = 0;
+ ehci->command &= ~CMD_PPCEE;
+ break;
}
break;
case PCI_VENDOR_ID_VIA:
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index fef5a1f9d48..5d963e35049 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -229,6 +229,13 @@ void xhci_ring_device(struct xhci_hcd *xhci, int slot_id)
static void xhci_disable_port(struct xhci_hcd *xhci, u16 wIndex,
u32 __iomem *addr, u32 port_status)
{
+ /* Don't allow the USB core to disable SuperSpeed ports. */
+ if (xhci->port_array[wIndex] == 0x03) {
+ xhci_dbg(xhci, "Ignoring request to disable "
+ "SuperSpeed port.\n");
+ return;
+ }
+
/* Write 1 to disable the port */
xhci_writel(xhci, port_status | PORT_PE, addr);
port_status = xhci_readl(xhci, addr);
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index d178761c398..0fae58ef8af 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1443,6 +1443,13 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
xhci->dcbaa = NULL;
scratchpad_free(xhci);
+
+ xhci->num_usb2_ports = 0;
+ xhci->num_usb3_ports = 0;
+ kfree(xhci->usb2_ports);
+ kfree(xhci->usb3_ports);
+ kfree(xhci->port_array);
+
xhci->page_size = 0;
xhci->page_shift = 0;
xhci->bus_suspended = 0;
@@ -1627,6 +1634,161 @@ static void xhci_set_hc_event_deq(struct xhci_hcd *xhci)
&xhci->ir_set->erst_dequeue);
}
+static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports,
+ u32 __iomem *addr, u8 major_revision)
+{
+ u32 temp, port_offset, port_count;
+ int i;
+
+ if (major_revision > 0x03) {
+ xhci_warn(xhci, "Ignoring unknown port speed, "
+ "Ext Cap %p, revision = 0x%x\n",
+ addr, major_revision);
+ /* Ignoring port protocol we can't understand. FIXME */
+ return;
+ }
+
+ /* Port offset and count in the third dword, see section 7.2 */
+ temp = xhci_readl(xhci, addr + 2);
+ port_offset = XHCI_EXT_PORT_OFF(temp);
+ port_count = XHCI_EXT_PORT_COUNT(temp);
+ xhci_dbg(xhci, "Ext Cap %p, port offset = %u, "
+ "count = %u, revision = 0x%x\n",
+ addr, port_offset, port_count, major_revision);
+ /* Port count includes the current port offset */
+ if (port_offset == 0 || (port_offset + port_count - 1) > num_ports)
+ /* WTF? "Valid values are ‘1’ to MaxPorts" */
+ return;
+ port_offset--;
+ for (i = port_offset; i < (port_offset + port_count); i++) {
+ /* Duplicate entry. Ignore the port if the revisions differ. */
+ if (xhci->port_array[i] != 0) {
+ xhci_warn(xhci, "Duplicate port entry, Ext Cap %p,"
+ " port %u\n", addr, i);
+ xhci_warn(xhci, "Port was marked as USB %u, "
+ "duplicated as USB %u\n",
+ xhci->port_array[i], major_revision);
+ /* Only adjust the roothub port counts if we haven't
+ * found a similar duplicate.
+ */
+ if (xhci->port_array[i] != major_revision &&
+ xhci->port_array[i] != (u8) -1) {
+ if (xhci->port_array[i] == 0x03)
+ xhci->num_usb3_ports--;
+ else
+ xhci->num_usb2_ports--;
+ xhci->port_array[i] = (u8) -1;
+ }
+ /* FIXME: Should we disable the port? */
+ }
+ xhci->port_array[i] = major_revision;
+ if (major_revision == 0x03)
+ xhci->num_usb3_ports++;
+ else
+ xhci->num_usb2_ports++;
+ }
+ /* FIXME: Should we disable ports not in the Extended Capabilities? */
+}
+
+/*
+ * Scan the Extended Capabilities for the "Supported Protocol Capabilities" that
+ * specify what speeds each port is supposed to be. We can't count on the port
+ * speed bits in the PORTSC register being correct until a device is connected,
+ * but we need to set up the two fake roothubs with the correct number of USB
+ * 3.0 and USB 2.0 ports at host controller initialization time.
+ */
+static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags)
+{
+ u32 __iomem *addr;
+ u32 offset;
+ unsigned int num_ports;
+ int i, port_index;
+
+ addr = &xhci->cap_regs->hcc_params;
+ offset = XHCI_HCC_EXT_CAPS(xhci_readl(xhci, addr));
+ if (offset == 0) {
+ xhci_err(xhci, "No Extended Capability registers, "
+ "unable to set up roothub.\n");
+ return -ENODEV;
+ }
+
+ num_ports = HCS_MAX_PORTS(xhci->hcs_params1);
+ xhci->port_array = kzalloc(sizeof(*xhci->port_array)*num_ports, flags);
+ if (!xhci->port_array)
+ return -ENOMEM;
+
+ /*
+ * For whatever reason, the first capability offset is from the
+ * capability register base, not from the HCCPARAMS register.
+ * See section 5.3.6 for offset calculation.
+ */
+ addr = &xhci->cap_regs->hc_capbase + offset;
+ while (1) {
+ u32 cap_id;
+
+ cap_id = xhci_readl(xhci, addr);
+ if (XHCI_EXT_CAPS_ID(cap_id) == XHCI_EXT_CAPS_PROTOCOL)
+ xhci_add_in_port(xhci, num_ports, addr,
+ (u8) XHCI_EXT_PORT_MAJOR(cap_id));
+ offset = XHCI_EXT_CAPS_NEXT(cap_id);
+ if (!offset || (xhci->num_usb2_ports + xhci->num_usb3_ports)
+ == num_ports)
+ break;
+ /*
+ * Once you're into the Extended Capabilities, the offset is
+ * always relative to the register holding the offset.
+ */
+ addr += offset;
+ }
+
+ if (xhci->num_usb2_ports == 0 && xhci->num_usb3_ports == 0) {
+ xhci_warn(xhci, "No ports on the roothubs?\n");
+ return -ENODEV;
+ }
+ xhci_dbg(xhci, "Found %u USB 2.0 ports and %u USB 3.0 ports.\n",
+ xhci->num_usb2_ports, xhci->num_usb3_ports);
+ /*
+ * Note we could have all USB 3.0 ports, or all USB 2.0 ports.
+ * Not sure how the USB core will handle a hub with no ports...
+ */
+ if (xhci->num_usb2_ports) {
+ xhci->usb2_ports = kmalloc(sizeof(*xhci->usb2_ports)*
+ xhci->num_usb2_ports, flags);
+ if (!xhci->usb2_ports)
+ return -ENOMEM;
+
+ port_index = 0;
+ for (i = 0; i < num_ports; i++)
+ if (xhci->port_array[i] != 0x03) {
+ xhci->usb2_ports[port_index] =
+ &xhci->op_regs->port_status_base +
+ NUM_PORT_REGS*i;
+ xhci_dbg(xhci, "USB 2.0 port at index %u, "
+ "addr = %p\n", i,
+ xhci->usb2_ports[port_index]);
+ port_index++;
+ }
+ }
+ if (xhci->num_usb3_ports) {
+ xhci->usb3_ports = kmalloc(sizeof(*xhci->usb3_ports)*
+ xhci->num_usb3_ports, flags);
+ if (!xhci->usb3_ports)
+ return -ENOMEM;
+
+ port_index = 0;
+ for (i = 0; i < num_ports; i++)
+ if (xhci->port_array[i] == 0x03) {
+ xhci->usb3_ports[port_index] =
+ &xhci->op_regs->port_status_base +
+ NUM_PORT_REGS*i;
+ xhci_dbg(xhci, "USB 3.0 port at index %u, "
+ "addr = %p\n", i,
+ xhci->usb3_ports[port_index]);
+ port_index++;
+ }
+ }
+ return 0;
+}
int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
{
@@ -1809,6 +1971,8 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
if (scratchpad_alloc(xhci, flags))
goto fail;
+ if (xhci_setup_port_arrays(xhci, flags))
+ goto fail;
return 0;
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 06fca0835b5..45e4a3108cc 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1549,6 +1549,15 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci,
cmd_completion = command->completion;
cmd_status = &command->status;
command->command_trb = xhci->cmd_ring->enqueue;
+
+ /* Enqueue pointer can be left pointing to the link TRB,
+ * we must handle that
+ */
+ if ((command->command_trb->link.control & TRB_TYPE_BITMASK)
+ == TRB_TYPE(TRB_LINK))
+ command->command_trb =
+ xhci->cmd_ring->enq_seg->next->trbs;
+
list_add_tail(&command->cmd_list, &virt_dev->cmd_list);
} else {
in_ctx = virt_dev->in_ctx;
@@ -2272,6 +2281,15 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev)
/* Attempt to submit the Reset Device command to the command ring */
spin_lock_irqsave(&xhci->lock, flags);
reset_device_cmd->command_trb = xhci->cmd_ring->enqueue;
+
+ /* Enqueue pointer can be left pointing to the link TRB,
+ * we must handle that
+ */
+ if ((reset_device_cmd->command_trb->link.control & TRB_TYPE_BITMASK)
+ == TRB_TYPE(TRB_LINK))
+ reset_device_cmd->command_trb =
+ xhci->cmd_ring->enq_seg->next->trbs;
+
list_add_tail(&reset_device_cmd->cmd_list, &virt_dev->cmd_list);
ret = xhci_queue_reset_device(xhci, slot_id);
if (ret) {
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 85e65647d44..170c367112d 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -454,6 +454,24 @@ struct xhci_doorbell_array {
/**
+ * struct xhci_protocol_caps
+ * @revision: major revision, minor revision, capability ID,
+ * and next capability pointer.
+ * @name_string: Four ASCII characters to say which spec this xHC
+ * follows, typically "USB ".
+ * @port_info: Port offset, count, and protocol-defined information.
+ */
+struct xhci_protocol_caps {
+ u32 revision;
+ u32 name_string;
+ u32 port_info;
+};
+
+#define XHCI_EXT_PORT_MAJOR(x) (((x) >> 24) & 0xff)
+#define XHCI_EXT_PORT_OFF(x) ((x) & 0xff)
+#define XHCI_EXT_PORT_COUNT(x) (((x) >> 8) & 0xff)
+
+/**
* struct xhci_container_ctx
* @type: Type of context. Used to calculated offsets to contained contexts.
* @size: Size of the context data
@@ -1240,6 +1258,14 @@ struct xhci_hcd {
u32 suspended_ports[8]; /* which ports are
suspended */
unsigned long resume_done[MAX_HC_PORTS];
+ /* Is each xHCI roothub port a USB 3.0, USB 2.0, or USB 1.1 port? */
+ u8 *port_array;
+ /* Array of pointers to USB 3.0 PORTSC registers */
+ u32 __iomem **usb3_ports;
+ unsigned int num_usb3_ports;
+ /* Array of pointers to USB 2.0 PORTSC registers */
+ u32 __iomem **usb2_ports;
+ unsigned int num_usb2_ports;
};
/* For testing purposes */
diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c
index 719c6180b31..ac5bfd619e6 100644
--- a/drivers/usb/misc/yurex.c
+++ b/drivers/usb/misc/yurex.c
@@ -536,6 +536,7 @@ static const struct file_operations yurex_fops = {
.open = yurex_open,
.release = yurex_release,
.fasync = yurex_fasync,
+ .llseek = default_llseek,
};
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index e6669fc3b80..99beebce855 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2116,12 +2116,15 @@ bad_config:
* Otherwise, wait till the gadget driver hooks up.
*/
if (!is_otg_enabled(musb) && is_host_enabled(musb)) {
+ struct usb_hcd *hcd = musb_to_hcd(musb);
+
MUSB_HST_MODE(musb);
musb->xceiv->default_a = 1;
musb->xceiv->state = OTG_STATE_A_IDLE;
status = usb_add_hcd(musb_to_hcd(musb), -1, 0);
+ hcd->self.uses_pio_for_control = 1;
DBG(1, "%s mode, status %d, devctl %02x %c\n",
"HOST", status,
musb_readb(musb->mregs, MUSB_DEVCTL),
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 36cfd060dbe..9d6ade82b9f 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -92,6 +92,59 @@
/* ----------------------------------------------------------------------- */
+/* Maps the buffer to dma */
+
+static inline void map_dma_buffer(struct musb_request *request,
+ struct musb *musb)
+{
+ if (request->request.dma == DMA_ADDR_INVALID) {
+ request->request.dma = dma_map_single(
+ musb->controller,
+ request->request.buf,
+ request->request.length,
+ request->tx
+ ? DMA_TO_DEVICE
+ : DMA_FROM_DEVICE);
+ request->mapped = 1;
+ } else {
+ dma_sync_single_for_device(musb->controller,
+ request->request.dma,
+ request->request.length,
+ request->tx
+ ? DMA_TO_DEVICE
+ : DMA_FROM_DEVICE);
+ request->mapped = 0;
+ }
+}
+
+/* Unmap the buffer from dma and maps it back to cpu */
+static inline void unmap_dma_buffer(struct musb_request *request,
+ struct musb *musb)
+{
+ if (request->request.dma == DMA_ADDR_INVALID) {
+ DBG(20, "not unmapping a never mapped buffer\n");
+ return;
+ }
+ if (request->mapped) {
+ dma_unmap_single(musb->controller,
+ request->request.dma,
+ request->request.length,
+ request->tx
+ ? DMA_TO_DEVICE
+ : DMA_FROM_DEVICE);
+ request->request.dma = DMA_ADDR_INVALID;
+ request->mapped = 0;
+ } else {
+ dma_sync_single_for_cpu(musb->controller,
+ request->request.dma,
+ request->request.length,
+ request->tx
+ ? DMA_TO_DEVICE
+ : DMA_FROM_DEVICE);
+
+ }
+}
+
/*
* Immediately complete a request.
*
@@ -119,24 +172,8 @@ __acquires(ep->musb->lock)
ep->busy = 1;
spin_unlock(&musb->lock);
- if (is_dma_capable()) {
- if (req->mapped) {
- dma_unmap_single(musb->controller,
- req->request.dma,
- req->request.length,
- req->tx
- ? DMA_TO_DEVICE
- : DMA_FROM_DEVICE);
- req->request.dma = DMA_ADDR_INVALID;
- req->mapped = 0;
- } else if (req->request.dma != DMA_ADDR_INVALID)
- dma_sync_single_for_cpu(musb->controller,
- req->request.dma,
- req->request.length,
- req->tx
- ? DMA_TO_DEVICE
- : DMA_FROM_DEVICE);
- }
+ if (is_dma_capable() && ep->dma)
+ unmap_dma_buffer(req, musb);
if (request->status == 0)
DBG(5, "%s done request %p, %d/%d\n",
ep->end_point.name, request,
@@ -395,6 +432,13 @@ static void txstate(struct musb *musb, struct musb_request *req)
#endif
if (!use_dma) {
+ /*
+ * Unmap the dma buffer back to cpu if dma channel
+ * programming fails
+ */
+ if (is_dma_capable() && musb_ep->dma)
+ unmap_dma_buffer(req, musb);
+
musb_write_fifo(musb_ep->hw_ep, fifo_count,
(u8 *) (request->buf + request->actual));
request->actual += fifo_count;
@@ -713,6 +757,21 @@ static void rxstate(struct musb *musb, struct musb_request *req)
return;
}
#endif
+ /*
+ * Unmap the dma buffer back to cpu if dma channel
+ * programming fails. This buffer is mapped if the
+ * channel allocation is successful
+ */
+ if (is_dma_capable() && musb_ep->dma) {
+ unmap_dma_buffer(req, musb);
+
+ /*
+ * Clear DMAENAB and AUTOCLEAR for the
+ * PIO mode transfer
+ */
+ csr &= ~(MUSB_RXCSR_DMAENAB | MUSB_RXCSR_AUTOCLEAR);
+ musb_writew(epio, MUSB_RXCSR, csr);
+ }
musb_read_fifo(musb_ep->hw_ep, fifo_count, (u8 *)
(request->buf + request->actual));
@@ -837,7 +896,9 @@ void musb_g_rx(struct musb *musb, u8 epnum)
if (!request)
return;
}
+#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_TUSB_OMAP_DMA)
exit:
+#endif
/* Analyze request */
rxstate(musb, to_musb_request(request));
}
@@ -1150,26 +1211,9 @@ static int musb_gadget_queue(struct usb_ep *ep, struct usb_request *req,
request->epnum = musb_ep->current_epnum;
request->tx = musb_ep->is_in;
- if (is_dma_capable() && musb_ep->dma) {
- if (request->request.dma == DMA_ADDR_INVALID) {
- request->request.dma = dma_map_single(
- musb->controller,
- request->request.buf,
- request->request.length,
- request->tx
- ? DMA_TO_DEVICE
- : DMA_FROM_DEVICE);
- request->mapped = 1;
- } else {
- dma_sync_single_for_device(musb->controller,
- request->request.dma,
- request->request.length,
- request->tx
- ? DMA_TO_DEVICE
- : DMA_FROM_DEVICE);
- request->mapped = 0;
- }
- } else
+ if (is_dma_capable() && musb_ep->dma)
+ map_dma_buffer(request, musb);
+ else
request->mapped = 0;
spin_lock_irqsave(&musb->lock, lockflags);
@@ -1789,6 +1833,8 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
spin_unlock_irqrestore(&musb->lock, flags);
if (is_otg_enabled(musb)) {
+ struct usb_hcd *hcd = musb_to_hcd(musb);
+
DBG(3, "OTG startup...\n");
/* REVISIT: funcall to other code, which also
@@ -1803,6 +1849,8 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
musb->gadget_driver = NULL;
musb->g.dev.driver = NULL;
spin_unlock_irqrestore(&musb->lock, flags);
+ } else {
+ hcd->self.uses_pio_for_control = 1;
}
}
}
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 76f8b355667..6a50965e23f 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -201,6 +201,7 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
+ { USB_DEVICE(FTDI_VID, FTDI_VARDAAN_PID) },
{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
@@ -696,6 +697,7 @@ static struct usb_device_id id_table_combined [] = {
.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
{ USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_SERIAL_VX7_PID) },
+ { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_CT29B_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
{ USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 263f6255119..1286f1e23d8 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -114,6 +114,9 @@
/* Lenz LI-USB Computer Interface. */
#define FTDI_LENZ_LIUSB_PID 0xD780
+/* Vardaan Enterprises Serial Interface VEUSB422R3 */
+#define FTDI_VARDAAN_PID 0xF070
+
/*
* Xsens Technologies BV products (http://www.xsens.com).
*/
@@ -721,6 +724,7 @@
*/
#define RTSYSTEMS_VID 0x2100 /* Vendor ID */
#define RTSYSTEMS_SERIAL_VX7_PID 0x9e52 /* Serial converter for VX-7 Radios using FT232RL */
+#define RTSYSTEMS_CT29B_PID 0x9e54 /* CT29B Radio Cable */
/*
* Bayer Ascensia Contour blood glucose meter USB-converter cable.
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 861223f2af6..6954de50c0f 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -51,6 +51,7 @@ static struct usb_driver usb_serial_driver = {
.suspend = usb_serial_suspend,
.resume = usb_serial_resume,
.no_dynamic_id = 1,
+ .supports_autosuspend = 1,
};
/* There is no MODULE_DEVICE_TABLE for usbserial.c. Instead
@@ -1343,6 +1344,8 @@ int usb_serial_register(struct usb_serial_driver *driver)
return -ENODEV;
fixup_generic(driver);
+ if (driver->usb_driver)
+ driver->usb_driver->supports_autosuspend = 1;
if (!driver->description)
driver->description = driver->driver.name;
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 24300d8a1bc..a28eb259257 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -313,6 +313,10 @@ struct usb_bus {
int busnum; /* Bus number (in order of reg) */
const char *bus_name; /* stable id (PCI slot_name etc) */
u8 uses_dma; /* Does the host controller use DMA? */
+ u8 uses_pio_for_control; /*
+ * Does the host controller use PIO
+ * for control transfers?
+ */
u8 otg_port; /* 0, or number of OTG/HNP port */
unsigned is_b_host:1; /* true during some HNP roleswitches */
unsigned b_hnp_enable:1; /* OTG: did A-Host enable HNP? */
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-21 13:47:04 +0000