diff options
Diffstat (limited to 'include/linux/usb/ch9.h')
| -rw-r--r-- | include/linux/usb/ch9.h | 514 |
1 files changed, 499 insertions, 15 deletions
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h index ce1d1e1..d1d732c 100644 --- a/include/linux/usb/ch9.h +++ b/include/linux/usb/ch9.h @@ -28,15 +28,13 @@ * [c] for consistency, removing all doubt even when it appears to * someone that the two other points are non-issues for that * particular descriptor type. - * - * Ported to U-boot by: Thomas Smits <ts.smits@gmail.com> and - * Remy Bohmer <linux@bohmer.net> */ #ifndef __LINUX_USB_CH9_H #define __LINUX_USB_CH9_H #include <linux/types.h> /* __u8 etc */ +#include <asm/byteorder.h> /* le16_to_cpu */ /*-------------------------------------------------------------------------*/ @@ -70,7 +68,7 @@ #define USB_RECIP_OTHER 0x03 /* From Wireless USB 1.0 */ #define USB_RECIP_PORT 0x04 -#define USB_RECIP_RPIPE 0x05 +#define USB_RECIP_RPIPE 0x05 /* * Standard requests, for the bRequest field of a SETUP packet. @@ -90,6 +88,8 @@ #define USB_REQ_GET_INTERFACE 0x0A #define USB_REQ_SET_INTERFACE 0x0B #define USB_REQ_SYNCH_FRAME 0x0C +#define USB_REQ_SET_SEL 0x30 +#define USB_REQ_SET_ISOCH_DELAY 0x31 #define USB_REQ_SET_ENCRYPTION 0x0D /* Wireless USB */ #define USB_REQ_GET_ENCRYPTION 0x0E @@ -105,10 +105,16 @@ #define USB_REQ_LOOPBACK_DATA_READ 0x16 #define USB_REQ_SET_INTERFACE_DS 0x17 +/* The Link Power Management (LPM) ECN defines USB_REQ_TEST_AND_SET command, + * used by hubs to put ports into a new L1 suspend state, except that it + * forgot to define its number ... + */ + /* * USB feature flags are written using USB_REQ_{CLEAR,SET}_FEATURE, and * are read as a bit array returned by USB_REQ_GET_STATUS. (So there - * are at most sixteen features of each type.) + * are at most sixteen features of each type.) Hubs may also support a + * new USB_REQ_TEST_AND_SET_FEATURE to put ports into L1 suspend. */ #define USB_DEVICE_SELF_POWERED 0 /* (read only) */ #define USB_DEVICE_REMOTE_WAKEUP 1 /* dev may initiate wakeup */ @@ -120,8 +126,38 @@ #define USB_DEVICE_A_ALT_HNP_SUPPORT 5 /* (otg) other RH port does */ #define USB_DEVICE_DEBUG_MODE 6 /* (special devices only) */ +/* + * Test Mode Selectors + * See USB 2.0 spec Table 9-7 + */ +#define TEST_J 1 +#define TEST_K 2 +#define TEST_SE0_NAK 3 +#define TEST_PACKET 4 +#define TEST_FORCE_EN 5 + +/* + * New Feature Selectors as added by USB 3.0 + * See USB 3.0 spec Table 9-6 + */ +#define USB_DEVICE_U1_ENABLE 48 /* dev may initiate U1 transition */ +#define USB_DEVICE_U2_ENABLE 49 /* dev may initiate U2 transition */ +#define USB_DEVICE_LTM_ENABLE 50 /* dev may send LTM */ +#define USB_INTRF_FUNC_SUSPEND 0 /* function suspend */ + +#define USB_INTR_FUNC_SUSPEND_OPT_MASK 0xFF00 +/* + * Suspend Options, Table 9-7 USB 3.0 spec + */ +#define USB_INTRF_FUNC_SUSPEND_LP (1 << (8 + 0)) +#define USB_INTRF_FUNC_SUSPEND_RW (1 << (8 + 1)) + #define USB_ENDPOINT_HALT 0 /* IN/OUT will STALL */ +/* Bit array elements as returned by the USB_REQ_GET_STATUS request. */ +#define USB_DEV_STAT_U1_ENABLED 2 /* transition into U1 state */ +#define USB_DEV_STAT_U2_ENABLED 3 /* transition into U2 state */ +#define USB_DEV_STAT_LTM_ENABLED 4 /* Latency tolerance messages */ /** * struct usb_ctrlrequest - SETUP data for a USB device control request @@ -140,10 +176,6 @@ * For most devices, interfaces don't coordinate with each other, so * such requests may be made at any time. */ -#if defined(__BIG_ENDIAN) || defined(__ARMEB__) -#error (functionality not verified for big endian targets, todo...) -#endif - struct usb_ctrlrequest { __u8 bRequestType; __u8 bRequest; @@ -159,8 +191,12 @@ struct usb_ctrlrequest { * (rarely) accepted by SET_DESCRIPTOR. * * Note that all multi-byte values here are encoded in little endian - * byte order "on the wire". But when exposed through Linux-USB APIs, - * they've been converted to cpu byte order. + * byte order "on the wire". Within the kernel and when exposed + * through the Linux-USB APIs, they are not converted to cpu byte + * order; it is the responsibility of the client code to do this. + * The single exception is when device and configuration descriptors (but + * not other descriptors) are read from usbfs (i.e. /proc/bus/usb/BBB/DDD); + * in this case the fields are converted to host endianness by the kernel. */ /* @@ -187,6 +223,11 @@ struct usb_ctrlrequest { #define USB_DT_WIRELESS_ENDPOINT_COMP 0x11 #define USB_DT_WIRE_ADAPTER 0x21 #define USB_DT_RPIPE 0x22 +#define USB_DT_CS_RADIO_CONTROL 0x23 +/* From the T10 UAS specification */ +#define USB_DT_PIPE_USAGE 0x24 +/* From the USB 3.0 spec */ +#define USB_DT_SS_ENDPOINT_COMP 0x30 /* Conventional codes for class-specific descriptors. The convention is * defined in the USB "Common Class" Spec (3.11). Individual class specs @@ -204,6 +245,28 @@ struct usb_descriptor_header { __u8 bDescriptorType; } __attribute__ ((packed)); + +/*-------------------------------------------------------------------------*/ + +/* USB_DT_DEVICE: Device descriptor */ +struct usb_device_descriptor { + __u8 bLength; + __u8 bDescriptorType; + + __le16 bcdUSB; + __u8 bDeviceClass; + __u8 bDeviceSubClass; + __u8 bDeviceProtocol; + __u8 bMaxPacketSize0; + __le16 idVendor; + __le16 idProduct; + __le16 bcdDevice; + __u8 iManufacturer; + __u8 iProduct; + __u8 iSerialNumber; + __u8 bNumConfigurations; +} __attribute__ ((packed)); + #define USB_DT_DEVICE_SIZE 18 @@ -230,6 +293,8 @@ struct usb_descriptor_header { #define USB_CLASS_APP_SPEC 0xfe #define USB_CLASS_VENDOR_SPEC 0xff +#define USB_SUBCLASS_VENDOR_SPEC 0xff + /*-------------------------------------------------------------------------*/ /* USB_DT_CONFIG: Configuration descriptor information. @@ -260,11 +325,56 @@ struct usb_config_descriptor { #define USB_CONFIG_ATT_WAKEUP (1 << 5) /* can wakeup */ #define USB_CONFIG_ATT_BATTERY (1 << 4) /* battery powered */ +/*-------------------------------------------------------------------------*/ + +/* USB_DT_STRING: String descriptor */ +struct usb_string_descriptor { + __u8 bLength; + __u8 bDescriptorType; + + __le16 wData[1]; /* UTF-16LE encoded */ +} __attribute__ ((packed)); + /* note that "string" zero is special, it holds language codes that * the device supports, not Unicode characters. */ +/*-------------------------------------------------------------------------*/ + +/* USB_DT_INTERFACE: Interface descriptor */ +struct usb_interface_descriptor { + __u8 bLength; + __u8 bDescriptorType; + + __u8 bInterfaceNumber; + __u8 bAlternateSetting; + __u8 bNumEndpoints; + __u8 bInterfaceClass; + __u8 bInterfaceSubClass; + __u8 bInterfaceProtocol; + __u8 iInterface; +} __attribute__ ((packed)); + #define USB_DT_INTERFACE_SIZE 9 + +/*-------------------------------------------------------------------------*/ + +/* USB_DT_ENDPOINT: Endpoint descriptor */ +struct usb_endpoint_descriptor { + __u8 bLength; + __u8 bDescriptorType; + + __u8 bEndpointAddress; + __u8 bmAttributes; + __le16 wMaxPacketSize; + __u8 bInterval; + + /* NOTE: these two are _only_ in audio endpoints. */ + /* use USB_DT_ENDPOINT*_SIZE in bLength, not sizeof. */ + __u8 bRefresh; + __u8 bSynchAddress; +} __attribute__ ((packed)); + #define USB_DT_ENDPOINT_SIZE 7 #define USB_DT_ENDPOINT_AUDIO_SIZE 9 /* Audio extension */ @@ -282,6 +392,254 @@ struct usb_config_descriptor { #define USB_ENDPOINT_XFER_INT 3 #define USB_ENDPOINT_MAX_ADJUSTABLE 0x80 +/* The USB 3.0 spec redefines bits 5:4 of bmAttributes as interrupt ep type. */ +#define USB_ENDPOINT_INTRTYPE 0x30 +#define USB_ENDPOINT_INTR_PERIODIC (0 << 4) +#define USB_ENDPOINT_INTR_NOTIFICATION (1 << 4) + +#define USB_ENDPOINT_SYNCTYPE 0x0c +#define USB_ENDPOINT_SYNC_NONE (0 << 2) +#define USB_ENDPOINT_SYNC_ASYNC (1 << 2) +#define USB_ENDPOINT_SYNC_ADAPTIVE (2 << 2) +#define USB_ENDPOINT_SYNC_SYNC (3 << 2) + +#define USB_ENDPOINT_USAGE_MASK 0x30 +#define USB_ENDPOINT_USAGE_DATA 0x00 +#define USB_ENDPOINT_USAGE_FEEDBACK 0x10 +#define USB_ENDPOINT_USAGE_IMPLICIT_FB 0x20 /* Implicit feedback Data endpoint */ + +/*-------------------------------------------------------------------------*/ + +/** + * usb_endpoint_num - get the endpoint's number + * @epd: endpoint to be checked + * + * Returns @epd's number: 0 to 15. + */ +static inline int usb_endpoint_num(const struct usb_endpoint_descriptor *epd) +{ + return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; +} + +/** + * usb_endpoint_type - get the endpoint's transfer type + * @epd: endpoint to be checked + * + * Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according + * to @epd's transfer type. + */ +static inline int usb_endpoint_type(const struct usb_endpoint_descriptor *epd) +{ + return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; +} + +/** + * usb_endpoint_dir_in - check if the endpoint has IN direction + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type IN, otherwise it returns false. + */ +static inline int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN); +} + +/** + * usb_endpoint_dir_out - check if the endpoint has OUT direction + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type OUT, otherwise it returns false. + */ +static inline int usb_endpoint_dir_out( + const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT); +} + +/** + * usb_endpoint_xfer_bulk - check if the endpoint has bulk transfer type + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type bulk, otherwise it returns false. + */ +static inline int usb_endpoint_xfer_bulk( + const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_BULK); +} + +/** + * usb_endpoint_xfer_control - check if the endpoint has control transfer type + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type control, otherwise it returns false. + */ +static inline int usb_endpoint_xfer_control( + const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_CONTROL); +} + +/** + * usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type interrupt, otherwise it returns + * false. + */ +static inline int usb_endpoint_xfer_int( + const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_INT); +} + +/** + * usb_endpoint_xfer_isoc - check if the endpoint has isochronous transfer type + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type isochronous, otherwise it returns + * false. + */ +static inline int usb_endpoint_xfer_isoc( + const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_ISOC); +} + +/** + * usb_endpoint_is_bulk_in - check if the endpoint is bulk IN + * @epd: endpoint to be checked + * + * Returns true if the endpoint has bulk transfer type and IN direction, + * otherwise it returns false. + */ +static inline int usb_endpoint_is_bulk_in( + const struct usb_endpoint_descriptor *epd) +{ + return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd); +} + +/** + * usb_endpoint_is_bulk_out - check if the endpoint is bulk OUT + * @epd: endpoint to be checked + * + * Returns true if the endpoint has bulk transfer type and OUT direction, + * otherwise it returns false. + */ +static inline int usb_endpoint_is_bulk_out( + const struct usb_endpoint_descriptor *epd) +{ + return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd); +} + +/** + * usb_endpoint_is_int_in - check if the endpoint is interrupt IN + * @epd: endpoint to be checked + * + * Returns true if the endpoint has interrupt transfer type and IN direction, + * otherwise it returns false. + */ +static inline int usb_endpoint_is_int_in( + const struct usb_endpoint_descriptor *epd) +{ + return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd); +} + +/** + * usb_endpoint_is_int_out - check if the endpoint is interrupt OUT + * @epd: endpoint to be checked + * + * Returns true if the endpoint has interrupt transfer type and OUT direction, + * otherwise it returns false. + */ +static inline int usb_endpoint_is_int_out( + const struct usb_endpoint_descriptor *epd) +{ + return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd); +} + +/** + * usb_endpoint_is_isoc_in - check if the endpoint is isochronous IN + * @epd: endpoint to be checked + * + * Returns true if the endpoint has isochronous transfer type and IN direction, + * otherwise it returns false. + */ +static inline int usb_endpoint_is_isoc_in( + const struct usb_endpoint_descriptor *epd) +{ + return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_in(epd); +} + +/** + * usb_endpoint_is_isoc_out - check if the endpoint is isochronous OUT + * @epd: endpoint to be checked + * + * Returns true if the endpoint has isochronous transfer type and OUT direction, + * otherwise it returns false. + */ +static inline int usb_endpoint_is_isoc_out( + const struct usb_endpoint_descriptor *epd) +{ + return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd); +} + +/** + * usb_endpoint_maxp - get endpoint's max packet size + * @epd: endpoint to be checked + * + * Returns @epd's max packet + */ +static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd) +{ + return __le16_to_cpu(epd->wMaxPacketSize); +} + +static inline int usb_endpoint_interrupt_type( + const struct usb_endpoint_descriptor *epd) +{ + return epd->bmAttributes & USB_ENDPOINT_INTRTYPE; +} + +/*-------------------------------------------------------------------------*/ + +/* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */ +struct usb_ss_ep_comp_descriptor { + __u8 bLength; + __u8 bDescriptorType; + + __u8 bMaxBurst; + __u8 bmAttributes; + __le16 wBytesPerInterval; +} __attribute__ ((packed)); + +#define USB_DT_SS_EP_COMP_SIZE 6 + +/* Bits 4:0 of bmAttributes if this is a bulk endpoint */ +static inline int +usb_ss_max_streams(const struct usb_ss_ep_comp_descriptor *comp) +{ + int max_streams; + + if (!comp) + return 0; + + max_streams = comp->bmAttributes & 0x1f; + + if (!max_streams) + return 0; + + max_streams = 1 << max_streams; + + return max_streams; +} + +/* Bits 1:0 of bmAttributes if this is an isoc endpoint */ +#define USB_SS_MULT(p) (1 + ((p) & 0x3)) /*-------------------------------------------------------------------------*/ @@ -388,7 +746,7 @@ struct usb_encryption_descriptor { /*-------------------------------------------------------------------------*/ -/* USB_DT_BOS: group of wireless capabilities */ +/* USB_DT_BOS: group of device-level capabilities */ struct usb_bos_descriptor { __u8 bLength; __u8 bDescriptorType; @@ -397,6 +755,7 @@ struct usb_bos_descriptor { __u8 bNumDeviceCaps; } __attribute__((packed)); +#define USB_DT_BOS_SIZE 5 /*-------------------------------------------------------------------------*/ /* USB_DT_DEVICE_CAPABILITY: grouped with BOS */ @@ -434,6 +793,61 @@ struct usb_wireless_cap_descriptor { /* Ultra Wide Band */ __u8 bReserved; } __attribute__((packed)); +/* USB 2.0 Extension descriptor */ +#define USB_CAP_TYPE_EXT 2 + +struct usb_ext_cap_descriptor { /* Link Power Management */ + __u8 bLength; + __u8 bDescriptorType; + __u8 bDevCapabilityType; + __le32 bmAttributes; +#define USB_LPM_SUPPORT (1 << 1) /* supports LPM */ +#define USB_BESL_SUPPORT (1 << 2) /* supports BESL */ +#define USB_BESL_BASELINE_VALID (1 << 3) /* Baseline BESL valid*/ +#define USB_BESL_DEEP_VALID (1 << 4) /* Deep BESL valid */ +#define USB_GET_BESL_BASELINE(p) (((p) & (0xf << 8)) >> 8) +#define USB_GET_BESL_DEEP(p) (((p) & (0xf << 12)) >> 12) +} __attribute__((packed)); + +#define USB_DT_USB_EXT_CAP_SIZE 7 + +/* + * SuperSpeed USB Capability descriptor: Defines the set of SuperSpeed USB + * specific device level capabilities + */ +#define USB_SS_CAP_TYPE 3 +struct usb_ss_cap_descriptor { /* Link Power Management */ + __u8 bLength; + __u8 bDescriptorType; + __u8 bDevCapabilityType; + __u8 bmAttributes; +#define USB_LTM_SUPPORT (1 << 1) /* supports LTM */ + __le16 wSpeedSupported; +#define USB_LOW_SPEED_OPERATION (1) /* Low speed operation */ +#define USB_FULL_SPEED_OPERATION (1 << 1) /* Full speed operation */ +#define USB_HIGH_SPEED_OPERATION (1 << 2) /* High speed operation */ +#define USB_5GBPS_OPERATION (1 << 3) /* Operation at 5Gbps */ + __u8 bFunctionalitySupport; + __u8 bU1devExitLat; + __le16 bU2DevExitLat; +} __attribute__((packed)); + +#define USB_DT_USB_SS_CAP_SIZE 10 + +/* + * Container ID Capability descriptor: Defines the instance unique ID used to + * identify the instance across all operating modes + */ +#define CONTAINER_ID_TYPE 4 +struct usb_ss_container_id_descriptor { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDevCapabilityType; + __u8 bReserved; + __u8 ContainerID[16]; /* 128-bit number */ +} __attribute__((packed)); + +#define USB_DT_USB_SS_CONTN_ID_SIZE 20 /*-------------------------------------------------------------------------*/ /* USB_DT_WIRELESS_ENDPOINT_COMP: companion descriptor associated with @@ -491,9 +905,22 @@ enum usb_device_speed { USB_SPEED_UNKNOWN = 0, /* enumerating */ USB_SPEED_LOW, USB_SPEED_FULL, /* usb 1.1 */ USB_SPEED_HIGH, /* usb 2.0 */ - USB_SPEED_VARIABLE, /* wireless (usb 2.5) */ + USB_SPEED_WIRELESS, /* wireless (usb 2.5) */ + USB_SPEED_SUPER, /* usb 3.0 */ }; +#ifdef __KERNEL__ + +/** + * usb_speed_string() - Returns human readable-name of the speed. + * @speed: The speed to return human-readable name for. If it's not + * any of the speeds defined in usb_device_speed enum, string for + * USB_SPEED_UNKNOWN will be returned. + */ +extern const char *usb_speed_string(enum usb_device_speed speed); + +#endif + enum usb_device_state { /* NOTATTACHED isn't in the USB spec, and this state acts * the same as ATTACHED ... but it's clearer this way. @@ -503,8 +930,8 @@ enum usb_device_state { /* chapter 9 and authentication (wireless) device states */ USB_STATE_ATTACHED, USB_STATE_POWERED, /* wired */ - USB_STATE_UNAUTHENTICATED, /* auth */ USB_STATE_RECONNECTING, /* auth */ + USB_STATE_UNAUTHENTICATED, /* auth */ USB_STATE_DEFAULT, /* limited function */ USB_STATE_ADDRESS, USB_STATE_CONFIGURED, /* most functions */ @@ -514,7 +941,64 @@ enum usb_device_state { /* NOTE: there are actually four different SUSPENDED * states, returning to POWERED, DEFAULT, ADDRESS, or * CONFIGURED respectively when SOF tokens flow again. + * At this level there's no difference between L1 and L2 + * suspend states. (L2 being original USB 1.1 suspend.) */ }; -#endif /* __LINUX_USB_CH9_H */ +enum usb3_link_state { + USB3_LPM_U0 = 0, + USB3_LPM_U1, + USB3_LPM_U2, + USB3_LPM_U3 +}; + +/* + * A U1 timeout of 0x0 means the parent hub will reject any transitions to U1. + * 0xff means the parent hub will accept transitions to U1, but will not + * initiate a transition. + * + * A U1 timeout of 0x1 to 0x7F also causes the hub to initiate a transition to + * U1 after that many microseconds. Timeouts of 0x80 to 0xFE are reserved + * values. + * + * A U2 timeout of 0x0 means the parent hub will reject any transitions to U2. + * 0xff means the parent hub will accept transitions to U2, but will not + * initiate a transition. + * + * A U2 timeout of 0x1 to 0xFE also causes the hub to initiate a transition to + * U2 after N*256 microseconds. Therefore a U2 timeout value of 0x1 means a U2 + * idle timer of 256 microseconds, 0x2 means 512 microseconds, 0xFE means + * 65.024ms. + */ +#define USB3_LPM_DISABLED 0x0 +#define USB3_LPM_U1_MAX_TIMEOUT 0x7F +#define USB3_LPM_U2_MAX_TIMEOUT 0xFE +#define USB3_LPM_DEVICE_INITIATED 0xFF + +struct usb_set_sel_req { + __u8 u1_sel; + __u8 u1_pel; + __le16 u2_sel; + __le16 u2_pel; +} __attribute__ ((packed)); + +/* + * The Set System Exit Latency control transfer provides one byte each for + * U1 SEL and U1 PEL, so the max exit latency is 0xFF. U2 SEL and U2 PEL each + * are two bytes long. + */ +#define USB3_LPM_MAX_U1_SEL_PEL 0xFF +#define USB3_LPM_MAX_U2_SEL_PEL 0xFFFF + +/*-------------------------------------------------------------------------*/ + +/* + * As per USB compliance update, a device that is actively drawing + * more than 100mA from USB must report itself as bus-powered in + * the GetStatus(DEVICE) call. + * http://compliance.usb.org/index.asp?UpdateFile=Electrical&Format=Standard#34 + */ +#define USB_SELF_POWER_VBUS_MAX_DRAW 100 + +#endif /* __LINUX_USB_CH9_H */ |